Two-layered mouthguard construction includes a shock-absorbent inner layer surrounded by a more rigid outer shield for impact protection. Boil and bite design provides custom molds for a tight, comfortable fit. Includes plastic mouth guard case for clean and secure storage. 100% EVA. BPA & Phthalate free. Designed with a two-layer construction, this plastic mouth guard features an inner layer for shock absorption and a rigid outer layer for incredible impact protection. The Everlast Evershield Mouthguard offers a customized fit with a boil and bite design and includes a case for simple storage.