The Pro Rosin bag from Marucci contains 100% genuine rock rosin

dual-layer knee construction and a heavy-duty fabric built to hold up on grass

SKB Trigger Latch® System (x4) — Four patented trigger release latches

allowing you to deal damage on any pitch in any location

Usage: Backpack

Easton Mav X Catcher's Box Set - Adult (Multiple Colors) Sliding Mitts The Pro Rosin bag fromControl the game behind the plate with the Easton MAV X Adult Catcher's Gear Box Set, available in multiple colors to match your team's style. Designed for serious catchers aged 15 and up who demand lightweight mobility and uncompromising protection, the MAV X line keeps you locked in from first pitch to last out. Part of Easton's elite lineup, this complete adult catcher's gear set delivers pro level performance with customizable color options. Adult