Rubber sole ROBUST WARMING SYSTEM :This men's snow boot comes with 200g 3M Thinsulate Insulation that dilevers your feet a sweat-free warmth even when the temperature is at -25℉. The rubber shell and warm comfy lining for all-around insulated warmth. WATERPROOF DESIGN ：Our winter boots for men features a flexible rubber shell for all-over defense from snow and wind. The seam sealed construction and AX-Tex waterproof membrane seal out water and let moisture escape so you stay dry. WATERPROOF DESIGN ： Our winter boots for men features a Full-grain leather shell for all-over defense from snow and wind. The seam sealed construction and AX-Tex waterproof membrane seal out water and let moisture escape so you stay dry. COMFORTABLE& Easy TO WEAR ： The winter hiking boots offer superior cushioning, impact absorption, high energy return, and stepping comfort thanks to its Memory foam and 6mm removable and flexible insole.and the snow boot for men has an zipper closure with easy-to that save your time. SUPPORTIVE AND GRIPPY ：The advanced sole provides a flexible response to various outdoor terrain. Durable rubber outsole with multidirectional lugs offers better grip, while the stability shank delivers lightweight support.