In the interest of durability and support, with this Siren we stopped just short of nothing but net. But a breathable mesh upper and mesh lining go with the flow. Thin, sculpted leather strapping provides lightweight but effective soft buttressing. Merrell’ proprietary combination of women-specific Q-Form® alignment in an Air Cushion midsole smoothes out foot strike and improves stride efficiency.

Upper/Lining
• Strobel construction offers flexibility and comfort
• Combination nubuck, pig suede leather and mesh
upper
• Bellows tongue keeps debris out
• Breathable mesh lining treated with Aegis®
Antimicrobial solution maintains foot comfort
• Ortholite® Anatomical Footbed
Midsole/Outsole
• Molded nylon arch shank
• Q-Form® Comfort midsole provides women’s specific
stride-sequenced cushioning
• Merrell Air Cushion in the heel absorbs shock and
adds stability
• 5 mm Sole lug depth
• Vibram® Siren Sole/TC5+ Rubber