Two in one - the look of semiopen sandals and the comfort of sneakers. The design, with a closed heel and woven toe with front close, is everything you need to feel secure. The Pikolinos Callie is crafted with a 100% pig skin leather upper, and a lightweight synthetic sole unit for traction underfoot. It features a cushioned insole for added comfort, along with hook and loop, touch-fastening closure for a secure and adjustable fit.