The lightweight, waterproof Women’s ThermoBall™ Lace Up WP is a secure-fitting winter boot with a durable recycled ripstop upper and toasty ThermoBall™ Eco insulation. Water-repellent, recycled P.E.T. ripstop upper Waterproof DryVent™ bootie construction Non-PFC durable water-repellent (non-PFC DWR) finish to help keep feet dry Lightweight ThermoBall™ Eco insulation retains warmth even 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 mudguard helps keep the elements out Oso fleece collar lining for comfort Comfortable OrthoLite® footbed made with 5% recycled rubber content Rubber outsole for increased traction