The Arctic Aerogel Foot Bed Insert is a revolutionary insulation upgrade for your footwear. This ultra-thin but highly effective footbed utilizes Primaloft® Aerogel, originally developed by NASA and harnessed by PrimaLoft®, to provide remarkable lightweight warmth. Slip it under your insole for quick and hassle-free insulation improvement, locking out extreme cold and heat. Boost your boot insulation performance with the Arctic Aerogel Foot Bed Insert, where innovation meets convenience for ultimate comfort in extreme conditions.