Vionic Men's White/Blue with Orthaheel Endurance 11.5 D(M) US Leather Synthetic sole Get where you need to go with ease and comfort in the Vionic&reg; Endurance Walker. Received APMA Seal of Acceptance. Click here to view Seal. Premium, full-grain, water-resistant leather uppers with colorful piping trim. Action lacing system for a flexible fit. Fabric lining keeps your feet cool and dry. Footbed features an antimicrobial top cloth to control foot odor. Removable, orthotic adds comfort and support. Lightweight, flexible EVA midsole absorbs shock. Imported. Measurements: Weight: 13 oz Product measurements were taken using size 12, width M (D). Please note that measurements may vary by size.