Womens SIREN 4 THERMO MID ZIP WP camp designed for an even more

designed for an even more comfortable step-in feel

Overhauled from top to bottom

Whether you're spending lazy Sundays at home or weekends camping with friends

membrane and DWR finishes are made without intentionally added PFAS

tender chicken

Womens SIREN 4 THERMO MID ZIP WP camp designed for an even moreWith 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,