- 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.
