From Ryka, the Echo Knit Slip On Sneakers feature: Soft ribbed knit upper Slip on fit with stretch topline for extra flexibility Fabric lining Anatomical insole with extra arch + heel support Lightweight EVA midsole for soft cushioning with RE-ZORB LITE Raised sidewalls for extra support Sticky rubber outsole with tread grooves for extra traction outdoors Weight: 220 g/8 oz per shoe Heel-to-toe drop: 8 mm Approx. 0.75" heel height Imported.