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 
  
• Bellows tongue keeps out debris 
  
• Metal hook and 100% recycled laces and webbing 
  
• Protective and abrasion-resistant rubber toe cap 
  
• 100% recycled breathable mesh lining 
  
• 100% recycled mesh footbed cover 
  
• Cleansport NXT™ treated for natural odour 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
  
• Lug depth: 5 mm
• Heel-to-toe drop: 8 mm
• Weight: 700 g