Women's Merrell Siren 4 Thermo Mid Boot
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 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, a new improvement made directly from customer feedback. Merrell waterproofing on the upper will keep your feet dry. With Vibram IceTrek underfoot, traction remains consistent under the wettest, most slippery conditions. For the first time ever incorporating Vibram traction lug for enhanced grip on uneven terrain.
- Heavy-duty, Waterproof, YKK zipper for easy on and off
- Protective and abrasion resistant rubber toe cap
- Cleansport NXT™ treated for natural odor control
- FloatPro™ Foam midsole for lightweight comfort that lasts
- Waterproof full grain leather and knit upper
- 100% recycled laces and webbing
- 100% recycled fleece lining
- 100% recycled mesh footbed cover
- 5% recycled PU removable footbed
