Breathable and sturdy leather/mesh combination uppers. Double hook-and-loop adjustable closure dor better fit. Padded tongue and collar for extra comfort . Breathable fabric linings. Removable footbed to allow for orthotics. Featherlight EVA outsole. PDAC reviewed for A5500 for diabetic patients and L3221 for othopedic needs. Runs short. Round full / half size to next full size. Measurements: Weight: 7 oz Product measurements were taken using size 8, width M (D). Please note that measurements may vary by size.