Women's Siren 4 Thermo Mid Zip Waterproof Size:8.5 The agility of a light

The agility of a light hiker with the warmth of a down jacket

more sustainably sourced fabrics

outdoor events

it powers through heavy vegetation or cover

making it easy to reach what you need

Women's Siren 4 Thermo Mid Zip Waterproof Size:8.5 The agility of a lightWith 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,