Our next to skin fit that contours the body for no distractions

Body fit

Our close to body fit with a low profile silhouette for ease of movement

Slim fit

Our standard, slightly off body fit for unrestricted comfort

Regular fit

Our roomy, off body fit for maximum comfort and easy layering

Relaxed fit

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<p>The Siren 4 Thermo Mid Zip is uniquely engineered to cradle the distinct contours of female feet, providing ultimate comfort, support, and stability. Keep your feet toasty warm even on the longest hikes with added insulation and protection.</p><ul><li>Full-grain leather upper is durable and waterproof</li><li>Breathable waterproof membrane seals out water and lets moisture escape</li><li>200 grams of Primaloft® Gold Eco Series synthetic insulation for lightweight warmth</li><li>SOLARCORE® Aerogel insole provides serous warmth underfoot while being extremely flexible and ultra-thin</li><li>Protective and abrasion resistant rubber heel and toe cap</li><li>Cleansport NXT™ natural odour control keeps your feet smelling fresh</li><li>Heavy-duty, waterproof, YKK zipper for easy on and off</li><li>100% recycled laces, webbing, fleece lining and footbed cover</li><li>Bellows tongue keeps out snow and trail debris</li><li>Thick FloatPro Foam™ midsole provides plenty of cushion and underfoot protection</li><li>Vibram® Icetrek outsole provides improved grip on very cold, icy or snowy surfaces</li></ul>

Siren 4 Thermo Mid Zip Waterproof Boots Tobacco

Merrell Siren 4 Thermo Mid Zip Waterproof Winter Boots - Women's

+20% off

10.5

How the shoe sizing compares to typical shoe sizes

The approximate boot height for the average person.

Waterproof shoes and boots feature a waterproof-breathable membrane and a gusseted tongue to help keep your feet dry in wet conditions.

Save an extra 20% off clearance footwear, discount applied automatically in cart. Hurry while supplies last.

Extra 20% off clearance footwear

Online only: Get an extra 20% off clearance footwear. 

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August long savings event: Get up to 50% off gear for camping, biking, climbing and more. 

Merrell Siren 4 Thermo Mid Zip Waterproof Winter Boots - Women's

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