From Ryka, the Women's Devotion Swift Mesh Running Sneakers feature: Breathable engineered mesh upper Durable molded heel overlay Padded tongue and heel collar Adjustable lace up closure Fabric lining Anatomical insole for arch and heel support with partially recycled EVA Lightweight Q:Foam midsole for soft cushioning and high energy return plus full-length RE-ZORB LITE® responsive cushioning Compression molded rubber outsole with decoupled molded heel and arch support pod WEIGHT: 254g/8.9oz per shoe HEEL-TO-TOE DROP: 9mm Imported.