Shop by Bat Certification
Resell & Save Even More
Earn hundreds when you list your gear for sale, or trade-in and drop off at a local partner.
Shop 21 oz Baseball Bats
At SidelineSwap, we feature a diverse collection of 21 oz baseball bats suitable for players of all levels. Our marketplace allows you to buy and sell quality sports equipment, ensuring you find a bat that fits your playing style and budget. With options from top brands such as Rawlings, Easton, and Demarini, you're bound to discover the right bat to enhance your game.
Bat Certification Options
Choose from various bat certifications to meet league requirements. Our selection includes:
- USSSA Certified: Ideal for tournament play
- USABat Certified: Perfect for youth leagues
- BBCOR Certified: Designed for high school and collegiate players
Additionally, take advantage of our Fall Sale, offering significant savings on select bats. Enjoy fast delivery options and hassle-free shopping with our Buyer Protection Guarantee, making sure your purchase is secure.
Join our community of athletes and find tips and tricks from fellow players to help you choose the right equipment. With thousands of listings, SidelineSwap is the platform where athletes come together to buy and sell their gear.