DESC: Find Merrell Boots - Women's Siren Ventilator and other Outdoor at Masseys.net. 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. Merrells proprietary combination of women-specific Q-Form alignment in an Air Cushion Midsole smoothes out footstrike and improves stride efficiency. End Uses: Light hiking or biking on trails or urban terrain in dry, warm conditions. Best worn with mid to light weight socks.Womens Sizes: 5-11 - Slip Lasted Construction - Full GrainSynthetic Leather and Breathable Mesh Upper - Breathable Mesh Lining - TPU Injection Molded Heel - 4.5mm Anatomical Footbed - Nylon 6.6 Injection Molded Arch Shank - Q-Form Triple Density Compression Molded EVA Footframe - Air Cushion Midsole - 5mm Sole Lug Depth - Vibram Siren SoleTC5+ RubberWeight: 1 lb. 6 ozs.