Umpires Mart - Pro-Plus Umpire Chest Protectors (Medium) TRI-DRI construction provides triple density protection while maximizing ventilation Cushioned liner is covered with DRI-GEAR? moisture wicking mesh for a dry and comfortable fit BioFresh?antimicrobial pad treatment guards this product against deterioration from mold, mildew stain and bacterial odors Full shoulder coverage. 5-way adjustable harness with dual quick release clips. Ergonomic design allows for excellent range of motion and eliminates bunching while in a crouched position Ultra-light weight - weighs less than 3 lbs!