‎Black with 2L water bladder

LIGHTWEIGHT – The hydration backpack is made of quality polyester material which is endurable and light, this professional cycling bag design is different from other backpacks that are a larger figure, it is simple and super lightweight. Equipped with an environmental TPU hydration bladder, pressure-tolerant and leak-proof. Drink the water by the tube directly without taking your running vest off or stopping your steps.
BREATHABLE – Excellent air ventilation system consists of porous mesh back and comfortable cellular cushion prevents stuffiness and releases pressure to your back.
LARGE CAPACITY – 5L running backpack is large enough for storing most daily needs such as laptop, tablet, purse, books, cellphone, water bottle and umbrella, etc.