Open footwear can still be protective and comfortable, even if you\'re hiking on uneven terrain and crossing streams. The Merrell All Out Blaze Sieve has a tough, water-shedding upper that hugs your foot to its responsive Vibram trail sole, which is made to flex naturally and let you feel what\'s underfoot UPPER / LINING: Waxy waterproof leather fabric upper Lycra neoprene stretch collar for easy on and off M Select FRESH antimicrobial agents reduces odour MIDSOLE / OUTSOLE: UniFly midsole connects you to the trail, protects you from the terrain 3 mm lug depth TC5+Vibram outsoleWeight: 1lb 5oz