- GORE-TEX waterproof membrane. Exceptional breathability and waterproof performance combined with a breathable mesh and TPU upper
- 100% recycled laces, webbing, breathable mesh lining and footbed cover
- Bellows tongue keeps out debris while the abrasion resistant rubber toe cap provides added protection
- FloatPro Foam midsole for lightweight comfort that lasts and a rock plate for added protection
- Vibram TC5+ outsole technology gives you confidence with every step from mountain trails to city streets. Made exclusively for Merrell, Vibram TC5+ delivers all-around grip, traction, and durability designed for every day wear
25 years of Merrell’s women’s-specific fit. The Siren 4 is uniquely engineered to cradle the distinct contours of female feet, providing comfort, support, and stability even on the longest hikes.
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