Features of the Merrell Women's Encore Q2 Breeze Shoe Mesh Upper Breathable mesh lining 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 genderengineered alignment and comfort Outsoles root themselves in Performance designs and materials to deliver durable, Highly slip-resistant traction on wet and dry ground and over mixed terrain, releasing dirt and debris with specialized lugs Alignment: Gender-engineered Dual-Density foam Midsole is properly sequenced into quadrants to help guide the foot, promoting a comfortable, efficient stride on the trail Stability: Heel-centering Technology compresses on heel strike, creating a pronounced heel cup, which keeps the heel centered, absorbs shock and stabilizes the foot Support: Kinetic Fit tri insole works with the natural movements of the foot to provide stability to all three major arches during athletic activity