CCM® F-I-T System® combines heat and pressure for a "gapless" customized fit Molded, anatomical ankle support ensures required lateral support Comfort foams form to the ankles for easy break in Anatomical felt combined with HD lace bite that delivers comfort and forward flex Microfiber liner for comfort and durability New low-profile agility bands and pro embossed quarter delivers durability and support Anatomical response, high density footbed has a natural heel cup for comfort Low-profile, overmolded silver outsole ensures solid boot interface and delivers on durability CCM® E-Blade™ pro blade holder maximizes energy transfer and features user friendly replaceable runner Proformance™ stainless runner delivers long lasting edge and excellent glide