Combine style, functionality, and all-day comfort this season with the Merrell Siren 4 Thermo Lace WP boots. Designed to keep you warm, dry, and sure-footed in winter conditions, these boots feature waterproof uppers and 200g of insulation to help protect against the cold and wet.
A FLOATPRO FOAM™ footbed delivers enhanced cushioning and energy return for comfortable all-day wear, while the Vibram® Icetrek outsole provides dependable traction on snowy, icy, and cold surfaces. With improved grip underfoot, you can take on winter terrain with confidence and focus on where you're going—not how you're getting there.
Built for lasting durability, the Siren 4 combines high-quality leather materials with a rugged rubber outsole. Whether you're heading out for a winter adventure or tackling your everyday routine, these boots are made to perform season after season.
Stay warm, stay comfortable, and keep your adventure going all winter long in the Merrell Siren 4 Thermo Lace WP boots.
- Waterproof pig suede leather upper
- 200 grams PrimaLoft® Gold Eco Series synthetic insulation
- Waterproof membrane seals out water and lets moisture escape
- FloatPro™ foam midsole with exceptional energy return and enduring comfort
- Vibram® Icetrek outsole designed to provide improved grip on cold, icy, or snowy surfaces
- FloatPro™ foam footbed for enhanced cushioning and energy return
- Waterproof coated leather upper
- Medial zipper for easy on and off
- Bellows tongue keeps out debris
- TPU waterproof shell for additional protection
- Faux fur lining
- Drop: 8mm
- Lug: 5mm
- Shaft height: 6 inches
- Manufacture style # J00005325