From Ryka, the Women's Epic Thong Slingback Sandals feature: Breathable knit upper with soft topline binding Hook-and-loop strap for a secure, adjustable fit Soft EVA insole for underfoot cushioning Lightweight ACTIVfoam™ EVA outsole for soft cushioning with UltraFlex grooves for natural movement Approx. 1.25" heel height Weight: 128 g/4.5 oz per shoe Heel-to-toe drop: 17 mm Imported.