These women’s Merrell Siren 4 Thermo black Chelsea winter boots are designed to keep your dry and warm during winter trail hikes and everyday commutes. Made of waterproof full grain leather and knit upper, these cold weather boots have a round toe and pull-on design. recycled fleece lining, footbed cover, and 5% recycled removable PU footbed provide sustainable comfort, while 100g Primaloft® Gold Eco Series synthetic insulation offers sustainable enhanced warmth. Features include a waterproof membrane which seals out water and lets moisture escape, Cleansport NXT™ treatment for odor control, FloatPro™ Foam midsole for lightweight comfort, and a Vibram® Arctic Grip™ All Terrain traction outsole with rubber heel and toe cap.