Men's Bugaboot original Omni-heat are a redefined rendition of the Bugaboot. New construction offers superior comfort and warmth with Omni-heat thermal reflective liners complete with a full 100 grams of insulation. No slip outsole with Omni-grip high traction rubber and complete water proof materials throughout. The Bugaboot Omni-heat also upgraded their oiled full grain leather shell and provides a pigskin tongue and collar. The suede upper looks great and provides even more insulation for those cold mornings, and the midsole is pure molded EVA.