Fast-fitting copolymer resin (30 seconds). Thickened posterior area helps absorb impact and oral trauma via an aerated shock-absorbing “pillow.” Impact pad reduces the risk of concussion. Thin, front-wall construction does not interfere with speech or breathing. Low profile helps reduce gagging. Perfect fit gives better blunt-blow protection. Copolymer construction lends to comfort and durability. Not made with natural rubber latex.