The Bauer Vapor X400 features a tech nylon quarter package and thermoformed x-rib pattern with a Microfiber lining material and Anaform foam used in the ankle padding. The tongue construction is and anatomical 2-piece felt fabric with mid density foam metatarsel guard used for comfort and protection against shots directly at prone ankle areas. A Molded Comfort EVA footbed is used and a the Upper or boot is thermoformable which means the boot is heated and worn to form directly to the players foot for a custom fit. The lower features of the X400 uses an injected TPR outsole for a ridgid protection against slashes and puck impacts while a Tuuk Lightspeed Pro Holder and Tuuk Stainless steel runner fits the X400.