Avia Men's Avi-Venture Walking Shoe 100% Leather/Textile Imported Synthetic sole Shaft measures approximately 2.5" from arch Leather and Synthetic upper with breathable mesh collar. Molded removable GELfm sockliner. EVA midosle featuring Avia's Archrocker to promote a natural walking gait. Avia's Cantilever technology for cushioning and stability. APMA (American Podiatric Medical Association) Seal of Acceptance.