Merrell · Footwear

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

Merrell Siren 4 Thermo Mid Zip Waterproof Winter Boots - Women's
35% OFF

$169.94

$259.95Save $90.01 (35%)

at MEC

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Price Historylast 3 months

$170$157$144$169.94Jun 8Jul 28Today

Low $144.44 · High $169.94. Hover the line to see each change.

Is this a good deal?

  • The lowest price we’ve tracked since June 2026 is $144.44; today’s price is $169.94.
  • The current price has held for 6 days.
  • Across the 100 Footwear deals we’re tracking right now, the median discount is 39% — this deal’s 35% off is right around that mark.

Based on prices we’ve recorded from MEC since June 2026, refreshed several times daily.

About this product

The Merrell Siren 4 Thermo Mid Zip Waterproof Winter Boot is a women's cold-weather hiking boot built for reliable performance in wet and wintry conditions. The mid-cut silhouette provides ankle support, while the waterproof construction earns a solid rain protection rating suited to damp trails and slushy terrain. A side zip makes entry and exit convenient without sacrificing a secure fit. Durability is a strong point for this boot, reflecting Merrell's reputation for long-wearing outdoor footwear. The Thermo designation signals insulation designed to retain warmth in colder temperatures. Available in black, this boot runs small according to buyer feedback, so sizing up is worth considering before purchasing. With a Canadian retail price of around 169.94 CAD, the Siren 4 Thermo Mid Zip sits in a practical mid-range position for women seeking a dependable waterproof winter boot that transitions comfortably between everyday wear and light outdoor use.

Category
Footwear
Brand
Merrell
Color
Black
Members Say
Runs small

What people are saying

Reviewers consistently praise the Siren 4 Thermo Mid Zip Waterproof for its reliable waterproofing, with multiple testers reporting dry feet across slushy, snowy, and wet conditions. The Vibram IceTrek outsole earns strong marks for grip on icy and uneven terrain, and the women's-specific fit is frequently called out as comfortable enough for long days on trail. The versatile, stylish leather design also wins points for transitioning naturally from trail to town. The most common criticisms center on the short shaft height (under 6 inches), which limits protection in deep snow, and the side zipper, which several reviewers found stiff and not as practical as expected. The boot is also noted as better suited for active winter hiking than stationary use in very cold temperatures, where the 200g insulation may fall short.

Specifications

Rain protection
3/5
Durability
4/5

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35% off Merrell Siren 4 Thermo Mid Zip Waterproof Winter Boots - Women's — Backpacker.ca