3M ThinsulateÖ insulation for maximum warmth performance without the bulk; Waterproof Mobility for trail riders with good support and walkability Insulation is protected from the elements inside waterproof membrane for maximum warmth efficiency 12" tall Rubber traction outsole for traction on and off the snow machine Rubber molded overlay toe, heel and inside for added durability and abrasion resistance High-loft fleece lining for added warmth and comfort Removable insulated insole. BOOTS ARC ADVNC BK/HIV 12