These sandals by ASOS Collection have been made with a leather-look upper and a rubber sole. The details include: a cut-out strap design, a sling back strap with an adjustable length, a pin buckle fastening and a flatform sole. ABOUT ME Upper: 100% Polyurethane. Lining sock: 100% Polyurethane. Sole: 100% Rubber. Heel height: 4cm/1.5"