Leatt Men's Maglia MTB Trail X-Flow 1.0 Elasticizzata E Ultra Leggera Trail X-Flow 1.0 Ultra Lightweight Stretch MTB JerseyPerfect for super hot days this ventilated top is unbeatable in its class! X-Flow mesh fabric makes it extremely ventilated lightweight and breathable with MoistureCool technology. The tight and elastic fit makes it really comfortable to wear.