From Ryka, the Jumpstart Lace Slip On Sneakers feature: Stretch-engineered knit upper Slip on fit with stretch gore laces Fabric lining Anatomical insole for arch and heel support ACTIVfoam™ EVA midsole for soft cushioning with built-up cushion in the midfoot for stability Durable compression-molded rubber outsole Approx. 232 g/8.3 oz per shoe Approx. 10 mm heel-to-toe drop Approx. 1.875" heel height Imported.