Women's Siren 4 Thermo Mid Zip Waterproof Color:Hazel HMG has been completely redesigned

HMG has been completely redesigned inside and out and there is no question it is our best HMG ever

our "1466" Hiker raised the bar on what the ultimate hiking sock needs to deliver

This sling system starts as an optimized

Find design features direct from our higher models

Women's Siren 4 Thermo Mid Zip Waterproof Color:Hazel HMG has been completely redesignedWith 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 200 grams of added insulation for warmth and protection. Now equipped with SOLARCORE insulation, lightweight insulation material initially designed for NASA, you never have to worry about warmth. The all new medial zipper provides easy on off,