1. Apparel

Baseball Activewear

6,383 Results
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Unisex One Size Fits All Oakley Radar EV Pitch Sunglasses (New)
ccasan655
Unisex One Size Fits All Oakley Radar EV Pitch Sunglasses (New)
$162$18010% OFF
19% PRICE DROP
Retail price: $280
Unisex One Size Fits All Oakley Radar EV Pitch Sunglasses (New)
ccasan655
Unisex One Size Fits All Oakley Radar EV Pitch Sunglasses (New)
$162$18010% OFF
19% PRICE DROP
Retail price: $280
Men's Medium/Large Easton Sunglasses (Used)
GriffinO8
Men's Medium/Large Easton Sunglasses (Used)
$18
Retail price: $50
Athletico Bat Bag
blowout_bargainsSideline Pro+
Athletico Bat Bag
$17$2015% OFF
15% OFF
Retail price: $199
Used Mizuno Batpack
blowout_bargainsSideline Pro+
Used Mizuno Batpack
$16$1815% OFF
15% OFF
Black Adult Unisex Large/Extra Large All Star Duffle Bag (Used)
JD_Kim3
Black Adult Unisex Large/Extra Large All Star Duffle Bag (Used)
$45
Vintage Blue Chicago Cubs Baseball Hat by Signature Sports (OSFA)
mthamby04
Vintage Blue Chicago Cubs Baseball Hat by Signature Sports (OSFA)
$15
Vintage MLB Chicago Cubs Baseball Hat from Signature Sports
mthamby04
Vintage MLB Chicago Cubs Baseball Hat from Signature Sports
$25
Vintage Chicago White Sox (MLB) Hat, New with Tag Attached
mthamby04
Vintage Chicago White Sox (MLB) Hat, New with Tag Attached
$25
Vintage Black New Era Pittsburgh Pirates Hat (MLB), Tag still attached
mthamby04
Vintage Black New Era Pittsburgh Pirates Hat (MLB), Tag still attached
$20
Gray Adult Unisex Large/Extra Large Easton Duffle Bag (Used)
JD_Kim3
Gray Adult Unisex Large/Extra Large Easton Duffle Bag (Used)
$35
Retail price: $150
Used Easton Bags
blowout_bargainsSideline Pro+
Used Easton Bags
$13$1515% OFF
15% OFF
Retail price: $70
Blue XL Boys Nike Jersey (New)
Tiede13
Blue XL Boys Nike Jersey (New)
$40$5020% OFF
20% PRICE DROP
Blue XL Boys Nike Jersey (New)
Tiede13
Blue XL Boys Nike Jersey (New)
$40$5020% OFF
20% PRICE DROP
Used Easton Bat Bag Blue
blowout_bargainsSideline Pro+
Used Easton Bat Bag Blue
$5
AUCTION
Blue Used Youth Nike Bat Bag
blowout_bargainsSideline Pro+
Blue Used Youth Nike Bat Bag
$21$2415% OFF
15% OFF
Retail price: $90
Used Easton Bat Bag
blowout_bargainsSideline Pro+
Used Easton Bat Bag
$5
AUCTION
Easton Bat Bag (Used)
LisaLank
Easton Bat Bag (Used)
$29
Used Franklin Bags & Batpacks
blowout_bargainsSideline Pro+
Used Franklin Bags & Batpacks
$5
AUCTION
Used Easton Bags & Batpacks
blowout_bargainsSideline Pro+
Used Easton Bags & Batpacks
$5
AUCTION
Used Adidas Bags & Batpacks Bag Type
blowout_bargainsSideline Pro+
Used Adidas Bags & Batpacks Bag Type
$5
AUCTION
Used Easton Bat Bag
blowout_bargainsSideline Pro+
Used Easton Bat Bag
$5
AUCTION
Easton Player (Used)
Janb12
Easton Player (Used)
$45
Retail price: $90
Black Men's 7 New Era Hat (Used)
Samsellsbats
Black Men's 7 New Era Hat (Used)
$13$1515% OFF
15% PRICE DROP
Green Men's 7 1/8 New Era 59 Fifty Hat (Used)
Samsellsbats
Green Men's 7 1/8 New Era 59 Fifty Hat (Used)
$13$1515% OFF
15% PRICE DROP
Savanna bananas Blue Medium Hat (Used)
Samsellsbats
Savanna bananas Blue Medium Hat (Used)
$13$1515% OFF
15% PRICE DROP
Boombah Bat Pack (Used)
Mooreheadbr
Boombah Bat Pack (Used)
$45
Retail price: $80
Unisex One Size Fits All Oakley Encoder Sunglasses (Used)
CChand55
Unisex One Size Fits All Oakley Encoder Sunglasses (Used)
$180$20010% OFF
10% PRICE DROP
Retail price: $300
DeMarini Bat Bag (Used)
Runandrew1Sideline Pro+
DeMarini Bat Bag (Used)
$20$2415% OFF
15% OFF
Blue Easton Bat Pack (Used)
Runandrew1Sideline Pro+
Blue Easton Bat Pack (Used)
$30$3515% OFF
15% OFF
Pink Easton Bat Pack (Used)
Runandrew1Sideline Pro+
Pink Easton Bat Pack (Used)
$21$2515% OFF
15% OFF
Under Armour Back Pack (Used)
Runandrew1Sideline Pro+
Under Armour Back Pack (Used)
$21$2515% OFF
15% OFF

Discover Baseball Activewear on SidelineSwap

At SidelineSwap, we offer an extensive selection of baseball activewear for athletes of all ages and skill levels. Whether you are looking for jerseys, shorts, sweatshirts, or jackets, our platform features thousands of listings to meet your needs. Save up to 70% off retail prices while shopping for both new and gently used gear.

Our categories include:

  • Base Layers & Compression
  • Shirts
  • Hoodies & Sweatshirts
  • Pants & Shorts
  • Accessories like Sunglasses and Backpacks

Each listing provides detailed information, ensuring you can compare prices and find the item that best suits your preferences. Our Buyer Protection Guarantee gives you peace of mind while shopping, knowing that your transactions are secure.

Whether you’re a competitive player or a casual fan, SidelineSwap connects you with a community of sports enthusiasts. Join today to sell your own gear or find exactly what you need for the upcoming season.

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