Comfortable and Breathable Fabric: The running vest's soft stretch fabric with a distinctive flannel edge is gentle and prevents chafing. This running water vest is ideal for active use because it weighs only 140 g/5 oz. The running hydration vest has a 1.5-iter leak-proof bladder and measures 20 cm by 35 cm (7.8 inches by 13.6 inches), It is the ideal option for trai running and hiking because it provideson-the-go hydration with minimal bulk
