Merrell Women's Siren 4 Thermo Mid Z 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 Primaloft® Gold Eco Series synthetic insulation. SOLARCORE® 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: Vibram® Arctic Grip™ All Terrain outsole designed to effectively extend the winter traction season, due to the enhanced durability and versatility.Comfort Features:• Heavy-duty, Waterproof, YKK zipper for easy on and off• Protective and abrasion resistant rubber toe cap• Cleansport NXT™ treated for natural odor control• FloatPro™ Foam midsole for lightweight comfort that lastsMaterials:• Waterproof full grain leather and knit upper• 100% recycled laces and webbing• 100% recycled fleece lining• 100% recycled mesh footbed cover• 5% recycled PU removable footbedAdditional Measurements:• Stack Height: 28.5-20.5mm• Drop: 8mm• Lug: 5mm• Half pair weight: 1lbs-3.04oz, 540g