The Vionic Karina Thong Sandal for women is an everyday essential. Designed with sleek leather straps with a polished circle metal vamp at the middle. The side of the Karina Thong Sandal offers adjustable buckles for a more personalized fit. The inner of this women's sandal offers comfortable leather lining and a lightweight EVA midsole that allows for shock absorption and reduced foot fatigue. This women's Vionic Sandal is constructed with a hard wearing rubber outsole that is designed with a patterned grip tread for superior traction. Leather straps Metal vamp at upper Adjustable buckles at strap Leather lining EVA midsole Shock-absorption Rubber outsole Patterned tread at outsole. Scientifically Proven to Alleviate Heel Pain* *Based on a peer-reviewed clinical study partially funded by Vionic on people experiencing moderate, non-traumatic heel pain. Vionic contoured sandals were shown to be comparable in effectiveness to Vionic orthotic inserts. Support Technology:.