Introducing the Camelbak HydroBak Hydration Pack 1.5L. Keeping yourself Hydrated throughout your day of exercise is vital, if you don’t then dehydration can be your worst enemy. Camelback’s most minimal back pack holds 1.5 litres in a narrow fit reservoir, which in turn maximises your range of motion. Having a large back pack on your back can mean that you can over heat quickly, the small profile of the bag means it’s lightweight and covering a small area of your back, in turn keeping you cooler. Camelbak have included the vented shoulder straps as well to help with keeping you cool whilst wearing the HydroBak. With one small pocket on the front of the bag you are able to store small tools or valuables keeping your jersey pockets free and comfortable. Finally, the bag has a thick reflective strip at the base of the bag so that pedestrians and vehicles have a better chance of seeing you.