Featuring a lightweight in-mold construction, MIPS slip-plane liner for additional rotational impact protection, and a secure 360° fit system, the MOD 1 makes it easy to dial in the perfect fit all while staying safe and looking good on the mountain. No Pressure Ear Cup Unlike traditional ear pads, Oakley's design puts zero pressure on your ears allowing for more comfort and better hearing. Removable design allows for wearing the strap over or under the helmet. FIDLOCK Buckle System Seamless magnetic functionality with gloves. MIPS MIPS, an industry leading patented brain protection system, helps protect your head against impact that can come from any direction. FS1-1 BOA System Height adjustable 360 degree fit for maximum comfort and safety.