Whatever activity you choose to do when you go out to the great oudoors, you need to make sure you have the right footwear for the different terrains. The North Face Women's Back To Berkely Boot II are comfortable and durable. The HydroSeal membranes give the boots the waterproof and breathable protection and the Primaloft Eco insulation gives your feet the warmth. So as you head out, be confident that the Berkely Boots will not only protect your feet from the elements but look good too. Features Durable, water resistant, element-shedding 100% recycled P.E.T ripstop upper Waterproof suede mudguard HydroSeal waterproof membrane 100g PrimaLoft Eco insulation OrthoLite sockliner Gusseted tongue Die-cut EVA midsole Durable TNF Winter Grip rubber outsole with IcePick temperature-sensitive lugs Glossary PrimaLoft ECOPrimaLoft ECO insulation uses post-consumer recycled material to create a high loft, thermally efficient, earth-friendly insulation OrtholiteOrtholite make high-quality insoles to support the structure of the human foot. Through advanced technology, they have used their polyurethane and recycled rubber-based formula to create the only open cell foam insole that combines long-lasting cushioning, breathability and durability. EVAEthylene Vinyl Acetate, a polymer used to absorb physical shock. Used in athletic materials.