The Women's Siren 4 Thermo Mid Zip Waterproof features:
- 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
- 200 grams Primaloft Gold Eco Series synthetic insulation
- Solarcore Aerogel insole provides underfoot superior warmth while being extremely flexible and ultra-thin
- Waterproof full grain leather upper, complete with a waterproof membrane seals out water and lets moisture escape
- Vibram Icetrek outsole designed to provide the improved grip on very cold, icy, or snowy surfaces
- 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
