Description The lightweight, waterproof Women’s ThermoBall™ Lace Up Waterproof Boots are secure-fitting winter boots with durable recycled ripstop uppers and warm ThermoBall™ Eco insulation. Our waterproof footwear incorporates a variety of advanced waterproofing materials, treatments, and processes. To help keep feet dry, we use internal waterproof membranes and/or adhesive and seam-seal constructions. Features Collar Bungee Is Adjustable To Help Prevent Snow From Getting In Comfortable OrthoLite® Eco Lt™ Footbed Made With 5% Recycled Rubber Content And 8% Plant-Derived Bio-Oil Instead Of Petroleum Per ASTM-D6866-16 Oso Fleece Collar Lining For Added Comfort Sole Unit: Rubber Outsole For Increased Traction Synthetic Mudguard Helps Keep Out The Elements Thermoball™ Eco 100% Recycled Polyester Insulation Helps Keep Feet Warm Even When Wet TNF™-Branded Webbing Pull Loops On Both Sides For Easy Pull-On Upper: Upper Made With 100% Recycled P.E.T. Ripstop With A Non-PFC Durable Water-Repellent (Non-PFC DWR) Finish For Added Water Repellency Waterproof DryVent™ Membrane