Genuine Goodyear welt construction for maximum support. Neoprene oil resistant sole with full-length leather midsole provides comfort and durability. Specially formulated insole offers superior cushioning and resists bacterial growth. Measurements: Weight: 2 lbs 7 oz. Circumference: 15 1 ⁄ 2 in. Shaft: 12 in. Weight: 2 lbs 7 oz. Circumference: 15 1 ⁄ 2 in. Shaft: 12 in. Product measurements were taken using size 9.5, width D - Medium. Please note that measurements may vary by size.