Giro Riela Cycling/Spin Shoe (formally known as Reva) - Women's The upper is made of high-grade synthetic leather and features three wide straps that allow simple, precise fit adjustments. Supportive EVA footbed with Aegis anti-microbial treatment enhances fit and comfort. A stout injected nylon sole helps transfer power to the pedals instantly. High-quality, breathable synthetic fiber. Injected nylon High traction lugged outsole Mid-foot scuff guard Accommodates steel toe spikes (included)