Got a runner friend who has a birthday coming up soon? Well, the best gift you could get for contemporary runners and athletes is Hydrosleeve. It’s one of the coolest running hydration device that will allow a runner to hydrate themselves during a run and that too, without using their hands. Once you tighten the sleeve on the upper part of the arm, the weight will be close to your core which will keep your body in balance. By using such a hassle-free hydration system, athletes will be able to improve their performance and stay hydrated in a cool way. Yes, there’s a thermal cool insulator that will keep your water cool during the run. The bladder will hold about 7.5 oz of fluid which will be enough for hydration while you run. Very useful product runners and athletes can make good use of.