Island adventures are just one comfortable step away, in the Vionic Pacific Bolinas backstrap sandal in black snake. The Pacific Bolinas adjustable platform sandals by Vionic feature a stylish printed leather, dual density midsole, durable rubber outsole and EVA footbed, complete with 3 points of adjustability for optimal personalized fit. Vionic shoes are made with orthaheel technology by podiatrists, to help with balance, support, stability, and natural alignment.