Protect your pearly whites while breathing free and clear. Extended O-flow breathing channels maximize your oxygen intake while the contoured design sits flush around the mouth, so the Alpha mouthguard is comfortable enough to wear all game long. [] Product Details:Lip protector:100% thermoplastic elastomer (TPE). Tether:100% polypropylene (PP). Hand wash. Imported. Style: N1012128; Color: Black; Size: One Size; Gender: Unisex; Age Group: Adult | Nike Alpha 2.0 Football Lip Protecting Mouthguard in Black, Size: One Size | N1012128-010