Bats

Baseball

Sale

USSSA Certified

Bat Certification

Length

21OZ

Weight

Drop

DeMarini

Louisville Slugger

Marucci

Brand

Used

Condition

Composite

Alloy

Hybrid

Bat Material

Kid Pitch (9YO-13YO)

Age Group

2 3/4"

Barrel

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

Unspecified

Release Year

Black

Blue

White

Color

## DeMarini CF Baseball Bat


The CF series is DeMarini’s flagship line of composite bats, known for their innovative technology and exceptional performance for a wide range of players. The CF series combines comfortable contact, explosive power, and unmatched swing speed. Featuring Paraflex Plus Composite construction, the CF series has a large, light sweet spot, and its 3Fusion Connection dramatically reduces vibration and enhances weight distribution. 

**Perfect bat for**: Young players seeking a two-piece composite bat with maximum barrel control and pop.


### Key features include: 




* **Paraflex Plus Composite Barrel:** Engineered for consistent and responsive performance across a wide hitting area, enhancing pop and feel.
* **3Fusion Connection:** Reduces vibration and redirects energy back into the barrel, improving performance and comfort.
* **ReAction End Cap:** Increases barrel performance without compromising swing speed, optimizing the overall balance of the bat.
* **Two-Piece Construction:** Delivers a nice flex at contact, creating a whip effect that drives the ball with more force.



### Top competitors comparison: [Louisville Slugger Meta](https://sidelineswap.com/shop/baseball/bats/louisville-slugger/meta/l59403) and the [Easton Ghost X Evolution](https://sidelineswap.com/shop/baseball/bats/easton/ghost-x-evolution/bat-material-composite/l228675)

The DeMarini CF stands out with its exceptional use of Paraflex Plus Composite and 3Fusion Connection technology, which provides a perfect blend of feel, flex, and performance. While the Meta is celebrated for its EKO Composite Barrel and balanced swing weight, and the Ghost X Evolution is recognized for its Dynamic Feel System, the CF shines with its ability to deliver a large sweet spot, reduce hand sting, and maintain a consistently high level of performance, positioning it as a top choice for players who prioritize comfort and power.


### 
**Evolution of the DeMarini CF series:** 


Here is a list that details the progression of this series, highlighting the main features and advancements with each new model. 
 
**2015 - [CF7](https://sidelineswap.com/shop/baseball/bats/demarini/cf7-2/l6993)**
- New Low Pro end cap and RCK knob for better balance and comfort. 
- ThermoFused Taper enhances the sweet spot and bat speed. 
- D-Fusion 2.0 handle technology further reduces vibration. 
 
**2016 - [CF8](https://sidelineswap.com/shop/baseball/bats/demarini/cf8/l7553)**
- Lighter and more durable than previous models. 
- Introduction of the D-Fusion 2.0 handle across all models for improved feel and reduction of vibration. 
- Increased sweet spot size and better balance. 
 
**2018 - [CF Zen](https://sidelineswap.com/shop/baseball/bats/demarini/cf-zen-2020/l8432)**
- Introduction of the ParaFlex Composite material for better weight distribution and performance. 
- 3Fusion handle and end cap for optimized weight control and minimized vibration. 
- Various drop weights available to accommodate different player needs. 



### What people are saying (edited for clarity and brevity) 

**PROS**



* A kid in a slump hit his first-ever home run with this bat. It arrived just in time for a playoff game and worked great for my average-sized 11-year-old son - not too heavy.
* After breaking in this bat properly, it really performs well! My son uses it for our USSSA 8U Travel team and you can easily tell when it's hit on the sweet spot. The bat is also forgiving on mis-hits, often resulting in faster grounders than usual (for this age group) and very high pop.
* This bat has more pop than most USA bats, similar to BBCOR/USSA. We broke it in with tee hits, and my son hit missiles and balls over the fence on the first day. Expensive, but worth it for avid players.

**CONS**



* Great indoor results with the new non-Easton bat during coach pitch pre-season. Disappointing mid-season pop-up infield hits. I've always used Easton before, won't try other brands again.
* Great pop, but poor performance when missing sweet spot. Treated with care, but still cracked in Apr. Son upset I didn't allow use in cold weather, with heavy balls or pitching machines. It was mostly used as game bat last year, did not last into 2nd season.
* My son's bat barrel cracked after hitting his first HR, leaving him without a bat during All Stars and elimination series.


### **Certification**: BBCOR, USA, USSSA


### Expert Notes (Parker)

The DeMarini CF is a classic model that goes back to 2015 and offers one of the hottest models (2017) but is limited in use as its performance surpasses bat standards. Overall, the CF reflects a classic design which has been the same since 2015. A two-piece composite that offers a large barrel and sweet spot with a lightweight handle that creates a whip-like feel to it with the flexible connection between the handle and barrel. 


Pop: ⭐⭐⭐⭐

Durability: ⭐⭐⭐

Vibration: ⭐⭐⭐⭐

 
**Balanced** or End loaded?

CAT9

## Marucci CAT 9 Bat


  

The Marucci CAT 9 baseball bat is part of Marucci's highly respected CAT series, known for its balance, performance, and durability. Introduced as an upgrade from the previous models, the CAT 9 incorporates new technologies and materials to provide a superior hitting experience.

  

Since its inception in 2009, Marucci has risen to prominence in the baseball industry by prioritizing direct input from professional players. This player-driven design philosophy has guided the development of some of the market's most trusted and high-performing baseball equipment. Marucci's dedication to quality and performance, coupled with its commitment to a detailed, handcrafted process, has established the brand as a favorite among players at all levels of the game.  
  

Perfect bat for: Youth players who are looking to elevate their game with superior balance, power, and performance.

  

### Key features include:

-   AZR Alloy Construction: Offers a more responsive microstructure for better feel, increased forgiveness, and enhanced performance at elevated swing speeds.
    
-   Precision-Balanced Barrel: Engineered for optimal balance, providing players with control and consistency in their swings.
    
-   Multi-Variable Wall Design: Creates an expanded sweet spot and thinner barrel walls, which help in forgiving off-center hits.
    
-   Ring-Free Barrel Technology: Eliminates dead spots in the barrel, ensuring maximum performance and solid contact throughout the bat.
    
-   Anti-Vibration Knob: Features an AV2 knob that reduces vibration, providing a better feel and minimizing hand sting on mis-hits.
    
-   Micro-Perforated Soft-Touch Grip: Ensures superior comfort and an enhanced feel, allowing for better control and reduced hand fatigue.
    
-   One-Piece Alloy Construction: Delivers a clean, consistent, traditional swing feel with built-in durability for long-lasting performance.
    

### Top competitors comparison: [Easton ADV 360](https://sidelineswap.com/shop/baseball/bats/easton/adv-360/l59709) and the [Louisville Slugger Solo](https://sidelineswap.com/shop/baseball/bats/louisville-slugger/solo/l7816)  
  
The rivals include the Easton ADV 360 and the Louisville Slugger Solo. The Marucci Cat 9 stands out due to its innovative AZR alloy construction, offering a unique combination of feel, performance, and durability that is tailored specifically for the developing player. While the Easton ADV 360 is prized for its 360-degree barrel tuning for precision across the entire barrel and the Louisville Slugger Solo is known for its ultra-balanced swing weight for ultimate swing speed, the Cat 9's multi-variable wall design and precision balancing mean it excels in providing young hitters with a powerful, yet manageable tool to enhance their game.

### Progression of the Marucci CAT 9 Baseball Bat:

  

Here is a list that details the progression of this series, highlighting the main features and advancements with each new model.

  

**2017 - [CAT7](https://sidelineswap.com/shop/baseball/bats/marucci/cat-7/l7247) & CAT7 CONNECT**

-   CAT7 and CAT7 Connect are introduced, featuring the upgraded AZ4X alloy for improved performance.
    
-   CAT7 has a one-piece alloy construction, while CAT7 Connect offers a two-piece hybrid design with a carbon composite handle.
    
-   Both models feature an increased sweet spot and an upgraded anti-vibration knob (AV2).  
      
    

**2019 - [CAT8](https://sidelineswap.com/shop/baseball/bats/marucci/cat8-2/l7709), CAT8 CONNECT, CAT COMPOSITE**

-   CAT8, CAT8 Connect, and CAT Composite are launched.
    
-   The barrels of CAT8 and CAT8 Connect are constructed using the new AZ105 alloy for higher performance at the sweet spot.
    
-   Introduction of SDX EXT connection technology for a stiffer connection and improved energy transfer.
    
-   CAT Composite, a two-piece composite bat, is introduced with SDX EXT and ring-free barrel construction.  
      
    

**2021 - [CAT9](https://sidelineswap.com/shop/baseball/bats/marucci/cat9-2/l163499) and CAT9 Connect**

-   CAT9 and CAT9 Connect are released with the new AZR alloy for a more responsive microstructure.
    
-   CAT9 features a 2nd Generation AV2 Anti-vibration knob and additional weight below the hands for better control.
    
-   CAT9 Connect introduces the Outer-Locking System (OLS) for an even stiffer connection and virtually zero vibrations.
    

  

### What people are saying (edited for clarity and brevity)

  

**PROS**

-   Great for kids who need to "feel the barrel" during their swing. The ball jumps off this bat well. It has never collapsed and provides enough feedback to know how you hit it. Vibration is only felt when hitting the handle.
    
-   "My 12-year-old son upgraded to a Marucci Cat 9 -5 bat from a 30" -8 bat and is hitting great with it. Although the bat is heavier, it is well-balanced and solid. Highly recommended for kids upgrading to a -5."
    
-   Bought the Cat 9 BBCOR bat for my 13-year-old son. It's well-balanced and has good pop for a one-piece. Vibration-resistant knob helps with miss hits. My son loves it and is hitting the ball well.
    

**CONS**

-   Good bat for my 10-year-old, but didn't hold up well in New England cold spring. Dead after one AAU season despite hard hits and dingers. Would have given 5 stars if it lasted longer.
    
-   My son used this bat for 1 season and it has multiple dents in it. He is 12 and weighs about 70 pounds. Thought I would get more than 1 season out of the bat.
    
-   Bought a bat for my 6-year-old son a year ago. It's good but lacks the power and balance of CATX Aluminum. Looking for sales to buy CATX.
    

  

### Certification: BBCOR

### Expert Notes ([Tony from BatExperts](https://sidelineswap.com/batexperts))

They took the same design from the CAT8 and strengthened the CAT9 with a stronger alloy to avoid any denting issues. It's a very good, durable bat. The CAT9 will be a bit heavier than the CAT8; it's a better bat for stronger kids. The first generation of the CAT9 came out with a gray, black, and red paint job. The second generation they called the Past Time, which was red, white, and blue. It's the same bat, but a different paint job. The second bat was more popular simply because of how it looked. Everyone likes the American Flag with its Stars and Stripes.  
  

Pop: ⭐⭐⭐⭐

Durability: ⭐⭐⭐⭐

Vibration: ⭐⭐⭐⭐

  
**Balanced** or End loaded?

CF Zen

# DeMarini CF Zen Baseball Bat

The DeMarini CF Zen series is a highly acclaimed line of composite baseball bats known for their light swing weight and exceptional balance. The DeMarini CF Zen is engineered with Paraflex Plus Composite material for players who demand a bat that can keep up with their high level of play. The DeMarini CF Zen offers exceptional flexibility, durability, and a massive sweet spot. Founded in 1989, DeMarini has emerged as an innovative designer for baseball bats at every level. 


**Perfect bat for**: Ideal for hitters who seek to maximize their swing speed without sacrificing control. 



### Key features include: 




* **Paraflex Plus Composite Barrel:** Engineered for consistent responsiveness and a huge sweet spot, delivering maximum pop.
* **3Fusion Connection:** Reduces vibration for a comfortable feel while redirecting energy back into the barrel for improved performance.
* **ReAction End Cap:** Increases barrel performance without sacrificing swing speed, enhancing the bat's overall balance.
* **Balanced Swing Weight:** Optimizes bat speed and control, making it easier for hitters to meet and drive the ball.
* **Two-piece Composite Construction:** Offers an ideal combination of weight, balance, and flexibility, promoting a more efficient swing path. 



### Top competitors comparison: [Louisville Slugger Meta](https://sidelineswap.com/shop/baseball/bats/louisville-slugger/meta/l59403) and the [Rawlings Quatro Pro](https://sidelineswap.com/shop/baseball/bats/rawlings/quatro-pro/l10010)

The DeMarini CF Zen differentiates itself from competitors like the Louisville Slugger Meta and the Rawlings Quatro Pro with its innovative Paraflex Plus Composite material and 3Fusion Connection technology, providing a unique blend of flexibility, balance, and reduced vibration. While the Meta is known for its EKO Composite barrel and premium feel, and the Quatro Pro boasts a four-piece composite design for maximum power, the CF Zen excels in delivering a balanced swing weight and enhanced barrel performance, making it a top choice for athletes who value precision along with power. 



### Evolution of the CF Zen Series 

Here is a list that details the progression of this series, highlighting the main features and advancements with each new model. 


**2016 - [CF Zen](https://sidelineswap.com/shop/baseball/bats/demarini/cf-zen-2020/l8432) (Initial Release)**
- Introduced the Paraflex Composite for a more responsive barrel and better weight distribution. 
- 2-piece composite design with D-Fusion 2.0 handle to reduce vibration and redirect energy back into the barrel. 
 
**2017 - [CF Zen](https://sidelineswap.com/shop/baseball/bats/demarini/cf-zen-2020/l8432) (Update)**
- Enhanced Paraflex Composite for even greater flexibility and durability. 
- Refined D-Fusion 2.0 handle technology to further dampen hand sting on mis-hits. 
- New Low Pro end cap to optimize balance and maintain barrel integrity. 
 
 
 

**2020 - [CF Zen (BBCOR)](https://sidelineswap.com/shop/baseball/bats/demarini/cf-zen-2020/bat-type-bbcor/l211796)**
- Applied the latest Paraflex Plus Composite for a lighter, more responsive barrel. 
- 3Fusion Connection technology optimized to redirect energy into the ball for explosive performance while minimizing hand sting. 
- Redesigned end cap (ReAction End Cap) to increase barrel performance and swing speed. 
 
**2021 - [CF Zen](%28https://sidelineswap.com/shop/baseball/bats/demarini/cf-zen-2020/l8432%29) (Latest Model)**
- New Paraflex Plus Composite delivers the perfect combination of balance and power. 
- Improved 3Fusion Connection and ReAction End Cap for enhanced feel, performance, and swing speed. 
- Attention to detail in material consistency for increased durability and performance across all pitch speeds. 


### What people are saying (edited for clarity and brevity)

**PROS**



* Good bat, with less pop than 1-piece aluminum. Ideal for singles with a lighter swing weight. Composite material, so have 2 bats for high competition.
* My son is 11 years old. I was worried he would struggle to swing a 30/20 bat this year, considering he used a 29/19 bat last year. However, this bat is amazing! It is hot right out of the wrapper. I wouldn't even think about using another bat this year; this one is perfect.
* This is the best overall USA bat on the market. It has decent pop and great balance, making it a high-quality option.

**CONS**



* "The bat developed cracks in the sweet spot from regular use during batting practice. After six months, the cracks grew larger until there were two major ones, resembling a cave-in."
* Bat has pop but I've had a couple of friends crack this same bat after 4 games.
* Bought it for my son, 2nd time he used it, it cracked. He only hit league baseballs with it in warm weather.


### **Certification**: BBCOR, USSSA, USA


### Expert Notes ([Tony from BatExperts](https://sidelineswap.com/batexperts))

The CF Zen has been discontinued. The early models from 2017 - 2021 were called CF Zens. After that, DeMarini changed the name to CF. The first models of the CF Zen were very high-performance. But they also tended to break, so DeMarini made them stronger, made them stiffer, made them more durable. And when they did that, the bats didn't hit as well. The early models were better performers than the later models. 


Pop: ⭐⭐⭐⭐

Durability: ⭐⭐⭐

Vibration: ⭐⭐⭐⭐

 
**Balanced** or End loaded?

CAT9 Composite

## Marucci CAT9 Composite Baseball Bat

The Marucci CAT 9 Composite bat represents a significant advancement in Marucci's approach to building bats for players who prefer the feel and performance of fully composite construction. Unlike its alloy counterparts within the CAT series, the CAT 9 Composite provides a massive barrel and balanced swing. With a philosophy deeply rooted in the insights and needs of actual players, Marucci’s Cat 9 Composite bat showcases the brand’s proficiency at using cutting-edge materials to elevate the performance of players at any age.

**Perfect bat for:** Both contact and power hitters who don’t mind a barrel-heavy bat.


### Key features include:



* **Multi-Directional Composite Material:** Creates an ultra-responsive barrel that offers a significant performance advantage across the entire hitting surface.
* **Maximum Barrel Length:** Provides a larger sweet spot and enhances the potential for off-center hits to still travel far and fast.
* **SDX LT Connection:** Reduces vibration on contact, delivering a more comfortable hitting experience without sacrificing power on swing-through.
* **Ring-Free Barrel Construction:** Eliminates dead spots for a more consistent performance and allows players to take full advantage of the bat's technical design.
* **Micro-Perforated Soft-Touch Grip:** Ensures comfortable, secure handling even in rigorous play conditions, reducing hand fatigue and enhancing control.
* **Balanced Swing Weight:** Optimizes bat speed and control, offering a perfect blend for hitters who value precision as much as power.


### Top competitors comparison: [DeMarini CF Zen](https://sidelineswap.com/shop/baseball/bats/demarini/cf-zen-2020/l8432) and the [Easton ADV 360](https://sidelineswap.com/shop/baseball/bats/easton/adv-360/l59709)

The Marucci Cat 9 Composite shines with its use of multi-directional composite materials, enabling a level of responsiveness and barrel performance that's hard to match. While the DeMarini CF Zen is praised for its consistently strong performance across the barrel and the Easton ADV 360 offers revolutionary 360-degree barrel tuning, the Cat 9 Composite distinguishes itself with a superior balance between speed, power, and comfort, courtesy of its meticulous engineering and vibration-dampening connection technology. This makes the Cat 9 Composite a top choice for youth players aiming to elevate their game with a bat that delivers fluidity and force in equal measure.


### Progression of the Marucci CAT 9 Composite Bat:

Here is a list that details the progression of this series, highlighting the main features and advancements with each new model.

**2017 - [CAT7](https://sidelineswap.com/shop/baseball/bats/marucci/cat-7/l7247) & CAT7 CONNECT**



* CAT7 and CAT7 Connect are introduced, featuring the upgraded AZ4X alloy for improved performance.
* CAT7 has a one-piece alloy construction, while CAT7 Connect offers a two-piece hybrid design with a carbon composite handle.
* Both models feature an increased sweet spot and an upgraded anti-vibration knob (AV2). 


**2019 - [CAT8](https://sidelineswap.com/shop/baseball/bats/marucci/cat8-2/l7709), CAT8 CONNECT, CAT COMPOSITE**



* CAT8, CAT8 Connect, and CAT Composite are launched.
* The barrels of CAT8 and CAT8 Connect are constructed using the new AZ105 alloy for higher performance at the sweet spot.
* Introduction of SDX EXT connection technology for a stiffer connection and improved energy transfer.
* CAT Composite, a two-piece composite bat, is introduced with SDX EXT and ring-free barrel construction. 


**2021 - [CAT9](https://sidelineswap.com/shop/baseball/bats/marucci/cat9-2/l163499), CAT9 Connect, [CAT9 Composite](https://sidelineswap.com/shop/baseball/bats/marucci/cat9-composite-3/l164870)**



* CAT9 and CAT9 Connect are released with the new AZR alloy for a more responsive microstructure.
* CAT9 features a 2nd Generation AV2 Anti-vibration knob and additional weight below the hands for better control.
* CAT9 Connect introduces the Outer-Locking System (OLS) for an even stiffer connection and virtually zero vibrations.


### What people are saying (edited for clarity and brevity)

**PROS**



* It had a great balance and weight, which made it easy to swing and hit the ball with precision.
* Great pop and appearance. My son loves it. Easy to get good exit velo.
* Huge sweet spot and very durable. Has a great feel and sound to it. 

**CONS**



* A few hits scuff paint off bat.
* When it doesn’t get hit on the sweet spot it doesn’t go very far and stings.
* It's a lilttle pricey and i already broke it... but i am going to buy a new one


### **Certification**: USSSA, USA, and BBCOR


### Expert Notes ([Tony from BatExperts](https://sidelineswap.com/batexperts))

The CAT9 Composite comes in two designs across two generations. The first, released in 2021, is gray, black, and red. And then it came out in red, white, blue, and gray. The first model was a more powerful, higher-performing bat. It has more exit velocity and is a hotter bat than the 2nd gen. Very durable, with very little breakage. Marucci's, across the board, have been good bats in terms of quality; they seem to last. Whether you're a power hitter or a small kid, the CAT9 Composite does very well. 


Pop: ⭐⭐⭐⭐⭐

Durability: ⭐⭐⭐⭐

Vibration: ⭐⭐⭐⭐

 
**Mid-Balanced** or End loaded?

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DeMarini CF (2 3/4") USSSA Bat 2021 (-8)

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Used 2021 Louisville Slugger Meta USSSA Certified Bat (-8) Composite 21 oz 29"

2021 Marucci USSSA Certified CAT9 Composite Pastime (-8) Composite 21 oz 29" (Used)

2021 Baseball Bats

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