Water Repellent Fabric - The abrasion- and water-resistant material is designed to withstand harsh weather, giving you peace of mind during travel and outdoor activity. Ventilated Comfort Design - A mesh back panel promotes air circulation, keeping you cool and comfortable during runs. Lightweight by design. Visibility Reinforcing Strips - Reflective elements on front and back increase visibility for night and low-light runs, enhancing safety. Ultra Lightweight Design - Weighing only 110g, this water bubble daypack is lighter than a smartphone and reduces the burden during your runs. Use scenarios - Long-distance runs and training in variable weather: stay hydrated without bulk, with a lightweight hydration solution. - Night or early-morning runs: enhanced visibility through reflective strips for safer miles. - Travel days and city errands: ultra-light hydration backpack that won’t weigh you down while on the go.