Designed and tested by the DVS team. Nubuck or leather upper. Triple stitch construction. Highly flexible lasting board. Perforated foam for heat reduction. Open-cell breathable mesh. Contoured heel-cup sock liner. Lightweight flexible rubber cupsole. Non-slip gum rubber outsole. Measurements: Weight: 1 lb 3 oz Product measurements were taken using size 9, width D - Medium. Please note that measurements may vary by size.