- Get ready for rugged trails and cold weather adventures wearing the Merrel Siren 4 Thermo Mid Zip Waterproof boot.
- 100% recycled fleece lining.
- 100% recycled laces and webbing.
- 100% recycled mesh footbed cover.
- 100% recycled removable PU footbed.
- 200 grams of Primaloft Gold Eco Series synthetic insulation.
- Bellows tongue keeps out debris.
- Cleansport NXT treated for natural odor control.
- FloatPro Foam midsole for lightweight comfort that lasts.
- Protective and abrasion-resistant rubber heel and toe cap.
- SOLARCORE Aerogel insole provides superior warmth.
- Vibram Icetrek outsole provides improved grip on cold, icy, or snowy surfaces.
- Vibram traction lugs increase traction and shed debris with each step.
- Waterproof full grain leather and knit upper.
- Imported.
Merrell Siren 4 Thermo Mid Zip Waterproof