Hydration Pack with 2L Water Bladder Super Lightweight Breathable Black

This is a 5L professional cycling backpack with 2L water bladder,capable for storing most necessaries for outdoor activities, suitable for riding, running and mountaineering etc. Features： WATER SUPPLEMENT--Environmental TPU hydration bladder equipped, pressure-tolerant and leak-proof. Drinking the water by the tube directly without taking your running vest off or stopping your steps. SAFETY--Designed with reflective strips on the back and the front that is conspicuous in the dark straps to keep you safe. BREATHABLE--Excellent air ventilation system consist of porous mesh back and comfortable cellular cushion，prevents stuffiness and releases pressure to your back. LIGHTWEIGHT--Ultralight backpack with wide,adjustable and breathable shoulde