This versatile engineered Merrell Women's Siren HEX Q2 E-Mesh Hiking Shoes are engineered for the way women move, offering support, alignment, and gender-specific stability. Engineered Mesh Upper Bellows Tongue Keeps Debris Out Kinetic Fit™ Tri Removable Contoured Insole Provides Light Support to All Three Arches Of The Foot Q FORM™ 2 Dual-Density Midsole with Heel-Centering Technology Provides Gender-Engineered Alignment and Comfort Merrell Air Cushion in the Heel Absorbs Shock and Adds Stability M Select™ GRIP Outsole Tunes Each Outsole with Durable Traction That Grips When and Where You Need It 3.5mm Lug Depth