MIRACOL Hydration Backpack with 2L Water Bladder, Thermal Insulation Pack Keeps Liquid Cool up to 4 Hours, Perfect Outdoor Gear for Skiing, Running, Hiking, Cycling (Blue and Orange) color-24inch-green-set SIZE AND MATERIAL--Outside size:12X7

SIZE AND MATERIAL--Outside size:12X7

* Use it at school

and is made from engineered material (ABS/PC) with Micro Diamond finish

Safety guaranteed : Anti-theft backpack with anti-theft dual metal zippers

MIRACOL Hydration Backpack with 2L Water Bladder, Thermal Insulation Pack Keeps Liquid Cool up to 4 Hours, Perfect Outdoor Gear for Skiing, Running, Hiking, Cycling (Blue and Orange) color-24inch-green-set SIZE AND MATERIAL--Outside size:12X7Brand: MIRACOL Color: Blue + Orange Features: THERMAL INSULATION: Miracol Hydration Backpack keeps your fluids cool with the inside thermal insulation that lasts up to a duration of 4 hours. This is no doubt the best hydration pack for running, hiking, cycling, or biking. HIGHLY DURABLE and LIGHTWEIGHT: This hydration pack features military grade durability which will keep the content of your backpack safe while it weights only 1 pound, definitely