Merrell Women's Siren 4 Thermo Mid Zip Waterproof Boot

A winter-ready boot with a women's-specific fit that combines function and all-day wear-ability.Best for: Winter HikeInsulation:200 grams PrimaloftA(R) Gold Eco Series synthetic insulation. SolarcoreA(R) Aerogel insole provides underfoot superior warmth while being extremely flexible and ultra-thin.Waterproofing: Waterproof full grain leather upper, complete with a waterproof membrane seals out water and lets moisture escape.Traction: VibramA(R) Icetrek outsole designed to provide the improved grip on very cold, icy, or snowy surfaces.Comfort Features:a Heavy-duty, Waterproof, YKK zipper for easy on and offa Protective and abrasion resistant rubber toe capa Cleansport NXT(TM) treated for natural odor controla FloatPro(TM) Foam midsole for lightweight comfort that lastsMaterials:a Waterproof full grain leather and knit uppera 100% recycled laces and webbinga 100% recycled fleece lininga 100% recycled mesh footbed covera 5% recycled PU removable footbedAdditional Measurements:a Stack Height: 28.5-20.5mma Drop: 8mma Lug: 5mma Half pair weight: 1lbs-3.04oz, 540g