it has the two piece

Conventional Open Backing

which provides the utmost in performance and durability

These pants are constructed with Pro 400D nylon with side panel reinforcement which reduces the weight of the pant while maintaining durability

improved impact resistance and a perfect feel and control

New Louisville Slugger 2025 Atlas™ (-3) BBCOR Baseball Bat 2 5/8" Barrel Size:32/29 it has the two pieceCome through in the clutch with the 2025 Atlas ( 3), the one piece alloy BBCOR bat loved by elite high school and college players across the country. Louisville Slugger engineers designed Atlas EVOKE Alloy Barrel using thousands of AI simulations, resulting in a barrel optimized for consistent performance no matter where you make contact. The 2025 Atlas features an updated Pro Design Knob Taper to help improve feel and reduce pressure on the hands. 2