The O2 Tranquility is the optimum Sanita sport shoe. With the elastic pull string and Sanita footbed, it's a perfect fit! The ergonomic, Slip Resistant sole accompanied with the trendy knit upper issues in a new kind of fashion. Featuring EVA forefoot comfort pad for added toe cushioning and removable contoured arch support footbed with memory foam top cover and anti-static stitch. Heel height: 1.5''. Material: Textile, Rubber.