Air-permeable mesh and quick-drying materials make this sporty shoe ideal for spending time outside in the summer. Upper: synthetic leather and mesh. Elastic lacing system for a quick and secure fit. Removable, pre-molded Kinetic Fit base insole for flexible support. Merrell Air Cushion heel cushioning for a soft step and increased stability. Midsole and footbed made of EVA for stability and comfort. M-Select Grip.