From The North Face, the Women's ThermoBall Logo Waterproof Cold Weather Boots feature: Water-repellent, recycled P.E.T. ripstop upper WaterproofDryVent™ bootie construction Non-PFC durable water-repellent (non-PFC DWR)finish to help keep feet dry Lightweight ThermoBall™ Eco insulation retains warmtheven when wet TNF™-branded webbing pull loops on both sides for easy pull-on Collar bungee is adjustable to prevent snow from getting in Synthetic mudguardhelps keep the elements out Oso fleece collar lining for comfort Comfortable OrthoLite® footbed made with 5% recycled rubber content Rubber outsolefor increased traction Imported.