"Full Description:\nA major advancement in the protection against cycling-related head injuries Rally WaveCel is a high-style, high-value off-road helmet with trail-specific features and WaveCel, a leading technology in the protection against cycling-related head injuries. WaveCel is a collapsible cellular structure that lines the inside of the helmet. This Trek-exclusive technology disrupts the safety standards the industry has accepted for over 30 years. What is WaveCel? WaveCel is a collapsible cellular structure that lines the inside of your helmet. It works like a crumple zone that absorbs the force of an impact before it reaches your head. Read the study to learn more. You’ll never want to ride anything else again. Virginia Tech validation All WaveCel helmets received the highest rating from Virginia Tech's third-party testing facility. This unbiased assessment proved WaveCel helmets to be among the highest level of protection available to cyclists with a 5-STAR rating. \n\nFeatures:\n\u003cul>\n\u003cli>Soft, comfortable, and moisture-wicking washable helmet pads\u003c/li>\n\u003cli>LockDown dividers make helmet strap management clean and easy to adjust\u003c/li>\n\u003cli>Adjustable visor offers multiple coverage options\u003c/li>\n\u003cli>Complies with U.S. CPSC safety standards for bicycle helmets for persons age 1 and over\u003c/li>\n\u003cli>Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership\u003c/li>\n\u003cli>WaveCel advanced helmet technology\u003c/li>\n\u003cli>BOA® Fit system lets you easily secure and adjust your helmet with one hand\u003c/li>\n\u003cli>Virginia Tech 5 STAR safety rating\u003c/li>\n\u003c/ul>\n\nSpecifications:\n\u003cul>\n\u003cli>Pad material - Moisture wicking pads\u003c/li>\n\u003cli>Buckle type - Standard buckle\u003c/li>\n\u003cli>Includes - Crash Replacement Guarantee\u003c/li>\n\u003cli>Fit System - BOA\u003c/li>\n\u003c/ul>\n"