The Cyclone GTX by Scarpa offers all the durable performance you need in a lightweight trail boot. Suede and nylon upper. Bi-directional ankle flex for easier mobility during difficult hikes. Extended Comfort GORE-TEX lining for long-lasting protection and breathability. Nylon shank provides excellent lightweight support. Padded PU midsole for all-day support and comfort. Durable Vibram Energy outsole offers dependable traction on various terrain. Measurements: ; Weight: 1 lb 8 oz ; Circumference: 14 1 2 in ; Shaft: 6 3 4 in ; Product measurements were taken using size 46 (US Men's 12), width D - Medium. Please note that measurements may vary by size.