The Hydrosleeve® hydration pack for runners is made with double-loop Lycra and high-grade Nylon.
-Sip and Go by simply raising your arm to your mouth.
-High elasticity holds the sleeve firm to the arm without sliding down
-The compartment is lined with therma-cool insulation that keeps the water cool.
-Comes with 2 anti-slosh bladders made from BPA free and PVC free TPU and 2 angled-valves made from FDA approved silicone.