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. / UPPER/ 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 / SOLE UNIT/ Rubber outsole for increased traction. Sizing runs slightly small, we suggest you size up.