Combine style, functionality and all-day wearability this season with the Merrell Siren 4 Thermo Mid Zip WP boot! These winter boots are constructed with waterproof uppers, 200g of insulation, and Solarcore® Aerogel insole ensuring that any and all water stays out so your feet are warm, comfortable, and dry no matter where your adventures take you. The Vibram® Icetrek outsole is designed for improved grip even on the snowiest, iciest, and coldest surfaces. Allowing you to be stable and sure-footed with every step, so you can focus on where you're going and less on how you'll get there. The Siren 4 has the highest quality leather materials and is paired with a rubber outsole, and a protective/ abrasion resistant rubber toe cap. Making these boots durable, not just for this season, but for many more that may come after. Wherever you see yourself this winter, may your feet stay warm, your adventure go long in the Siren 4 Thermo Mid Zip WP boots from Merrell!

• Made For: Winter Hike
• Trail Type: Moderate
• Insulation Rating: Warmer
• 200 grams Primaloft® Gold Eco Series synthetic insulation
• Waterproof full grain leather upper
• Waterproof membrane seals out water and lets moisture escape
• Vibram® Icetrek outsole
• Waterproof, Heavy-duty, YKK Zipper for easy on and off
• Protective and abrasion resistant rubber toe cap
• Cleansport NXT™ treated for natural odor control
• FloatPro™ Foam midsole
• 5% recycled PU removable footbed
• Heel-Toe Drop: 8mm
• Lug: 5mm
• Manufacturer style #: J037412