25 years of women's fit models from Merrell. The fit of the Siren 4 was designed specifically for women. It adapts to the shape of the foot and ensures comfort, support and stability even on the longest hikes. Material - Type membrane: GORE-TEX - Type upper: mesh - Lining: mesh - Upper: breathable mesh TPU - Type lining: textile Features: Toe cap/protection - Crampon suitability: non-crampon - Footbed/insole: removable insole - Closure type: lacing Sole - Sole type: Vibram - Outsole: TC5+ - Midsole/Midsole: FloatPro foam midsole Fit & Cut - Size information: size runs small - Fit: regular fit Main information - Field of application: Hiking - Construction: Low Cut Details - Details: - Full-length tongue to prevent dirt penetration - Protective, abrasion-resistant rubber toe cap - Mesh layer on footbed - NXT coating to prevent odour build-up - Removable PU footbed - Rock Plate protection - Vibram lugs provide optimum grip and clean themselves of dirt with every step.