Waterproof membrane seals out water and lets moisture escape
Waterproof full grain leather and wool upper with a bungee lace with toggle for secure fit
Bellows tongue keeps out debris and protective shell keeps feet dry
200 grams Primaloft Gold Eco Series synthetic insulation
Vibram Icetrek outsole designed to provide the improved grip on very cold, icy, or snowy surfaces
Description
With 25 years of Merrell's women's-specific fit, the Siren 4 Thermo is uniquely engineered to cradle the distinct contours of female feet, providing comfort, support, and stability even on the longest hikes with added insulation for warmth and protection.
