Supportive Cushioning for medium & high arch feet. Aeromax mesh upper with TPU structured logo. Sky midsole for soft, long-lasting cushioning. Web Suspension Footbridge for reinforcement & support. PRS midsole technology for pressure relief. Ozone Last - Semi-curved, snug rearfoot and forefoot freedom. Mozaic - Pressure relief insole for customized comfort. Removable Inserts: Two removable layers for fitting flexibility. total Removable Depth: .25 inch. Keep feet healthy, cool, and dry.