size

uk 7 / eu 39.5 uk 8 / eu 40.5 uk 8.5 / eu 41 uk 9 / eu 41.5 uk 9.5 / eu 42 uk 10 / eu 42.5 uk 10.5 / eu 43 uk 11 / eu 43.5 uk 12 / eu 44.5

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The Fast-Trac Nitro 4 features a high-rebound, lo weight NITROFOM midsole for comfortable cushioning, and a reinforced engineered mesh upper with structure, toe caps and mudguard skins. An aggressive outsole features deeper lugs and even tougher PMAGRIP ATR rubber to help provide durable traction, wherever the trail takes you.