" In a full-contact sport with multiple collisions per game, there are no shortcuts when it comes to players' safety. Our loose-compression Player Shirt, infused with proprietary PolyShield(TM) technology, dissipates up to 90% of impact from shoulder and lower back hits to keep players fearless and focused. With extra armor placed vertically over the shoulder, directly on the deltoid and horizontally across the lower back, the Player Shirt gives full-coverage protection for vital organs while enhancing athleticism, speed and confidence. " " Product Features: Helps reduce risk of injury for trapezius, clavicles, upper scapulae, kidneys and lower back Looser compression fit with 4-way stretch Odor, stain, moisture and rash resistant Machine-washable and long-lasting Works in conjunction with any jersey or uniform Breathable, flexible, lightweight material " " Additional Details: Care is easy. Just toss it in the washer on cold, then let it air dry Do not bleach or machine dry Failure to follow these instructions may result in deterioration of the garment Warranty will be voided if these instructions are not followed "