Our lightweight and durable Shoulder Shirt, infused with PolyShield(TM) technology, will help you stay injury-free, agile and comfortable every game. This state-of-the-art solution dissipates up to 90% of impact, reducing blunt force transferred to the body 40% more than our competitors while maximizing performance, confidence and drive. From everyday training to championship overtime, our Shoulder Shirt keeps you resilient against even the toughest hits and accelerates recovery so you can get back in the game faster. Features Helps reduce risk of injury for trapezius muscles and clavicles Machine-washable, long-lasting and weather-resistant Works in conjunction with any jersey or uniform Breathable, flexible, lightweight material 90% Polyester, 10% Spandex PolyShields(TM) Care Instructions: 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.