【MULTIPLE LARGE CAPACITY STORAGE】– This running vest features a dedicated 2L water bladder compartment, a water bottle pocket, and a secure zippered phone pocket, which neatly stores water bottles, phones, keys, energy gels, and other essentials for quick access during exercise.,【ERGONOMIC BREATHABLE COMFORT】– Breathable mesh fabric boosts airflow for efficient heat dissipation and sweat wicking. Fully adjustable shoulder, chest, and waist straps give the hydration backpack a customized fit, keeping you cool and comfortable during long sessions.,【2L FOOD-GRADE WATER BLADDER】– The water backpac