Merrell Women's Siren 4 Thermo Mid Zip Waterproof Hiking Boot Antimicrobial Vionic active footwear features Advanced

Vionic active footwear features Advanced Motion System (AMS) technology

every curve

I'm green™ bio-based EVA (over 50%) which is lightweight and cushioned for shock absorption

Metallic Tumbled Leather

Merrell Women's Siren 4 Thermo Mid Zip Waterproof Hiking Boot Antimicrobial Vionic active footwear features AdvancedA winter ready boot with a women's specific fit that combines function and all day wearability. Features 200 grams Primaloft Gold Eco Series synthetic insulation Solarcore Aerogel insole provides underfoot superior warmth while being extremely flexible and ultra thin Waterproof full grain leather upper, complete with a waterproof membrane seals out water and lets moisture escape Vibram Icetrek outsole designed to provide the improved grip on very