Women's Siren 4 Thermo Mid Zip Waterproof

Product Information

The Merrell Women's Siren 4 Thermo Mid Zip Waterproof boot is engineered for winter adventures, providing warmth, stability, and reliable traction in cold, icy conditions. Built with a female-focused fit, these boots cradle the contours of women's feet for exceptional comfort and support on extended hikes. The convenient medial zipper offers easy on and off, a feature directly inspired by customer feedback.

These boots boast significant insulation and advanced waterproofing to keep your feet dry and warm, letting you tackle winter trails with confidence. The durable construction is complemented by eco-conscious materials, making them a thoughtful choice for cold-weather exploration.

Features

• Waterproof full-grain leather and knit upper with a waterproof membrane seals out moisture.
• 200 grams of PrimaLoft® Gold Eco Series synthetic insulation provides warmth.
• SOLARCORE® Aerogel insole offers superior, flexible, and ultra-thin underfoot warmth.
• Vibram® Icetrek outsole with traction lugs designed for enhanced grip on cold, icy, and snowy surfaces.
• Heavy-duty, waterproof YKK medial zipper for easy entry and exit.
• FloatPro™ Foam midsole ensures lightweight, lasting comfort.
• Bellows tongue helps keep debris out.
• Protective and abrasion-resistant rubber heel and toe cap.
• Treated with Cleansport NXT™ for natural odor control.
• Constructed with 100% recycled laces, webbing, fleece lining, and mesh footbed cover.
• Features a 5% recycled removable PU footbed.

Specs

• Weight (half pair): 19 oz / 538 g.
• Stack Height: 28.5–20.5 mm.
• Heel-to-Toe Drop: 8 mm.
• Lug Depth: 5 mm.
• Shaft height: 5.91 in (150 mm).