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.

FEATURES
• GORE-TEX® waterproof membrane, exceptional breathability and waterproof performance
• Breathable mesh and TPU upper
• Metal Hook and 100% recycled laces and webbing
• Bellows tongue keeps out debris
• Protective and abrasion resistant rubber toe cap
• 100% recycled breathable mesh lining
• 100% recycled mesh footbed cover
• Cleansport NXT™ treated for natural odor control
• Removable PU footbed
• Rock plate for protection
• FloatPro™ Foam midsole for lightweight comfort that lasts
• Vibram® TC5+ outsole provides exceptional traction for outdoor multi-sport activities, formulated exclusively for Merrell
• Vibram traction lugs specifically designed to increase traction and shed debris with each step

TECH SPECS:
• Half pair weight: 0lbs-12.34oz, 350g
• Drop: 8mm
• Lug: 5mm
• Stack Height: 28.5-20.5mm