For adventures in the coldest weather, the IceBug Adak Boot keeps your toes nice and warm as you make your way around town or down the trail. This sustainably-made boot use recycled materials wherever possible, from the recycled merino wool felt upper to the recycled polyester Primaloft Bio, and recycled rubber in the outsole. Ready for anything winter throws at us, the Adak's insulated upper and outsole with carbide studs help us stay warm and confidant as we stride into the day.