The PS3 Performance Patella Sleeve in adult size medium is a durable and lightweight knee protector designed for soccer players. Made of polyethylene foam, this black sleeve provides high durability while being breathable and water resistant. It is suitable for all positions and both handedness, with a simple sleeve design and no straps required for use. The PS3 model by Os1 is perfect for unisex adults looking to add extra protection to their knees during intense football matches.