The SKLZ Weighted Vest helps you to add variable resistance to your training regimen without compromising your form or technique. The Weighted Vest distributes weight (up to 10 lbs) evenly for maximum comfort and features flexible weights that bend with movement. The vest is constructed with reinforced nylon mesh for breathability.Features:*Breathable vest adjusts from 1 lb to 10 lbs in half pound increments*Velcro belt adjusts to fit athletes of most sizes*Soft weights allow the vest to bend and flex with your movements*Perfect for: Track and Field, Basketball, Soccer, Football, Baseball, Volleyball, Swimming, Water Polo