Strobel construction offers flexibility and comfort. Nubuck and mesh upper. Breathable mesh lining treated with Aegis® solution resists odor. Molded nylon arch shank. Compression molded EVA footframe provides cushioning. Merrell air cushion in the heel absorbs shock and adds stability. Merrell QForm® Comfort midsole provides women’s specific stride-sequenced cushioning. Merrell Willow Rubber sole is slip resistant and shock absorbent.