Size Medium Key benefits Reliable onthego hydration: Designed to accept a 2L water bladder not included, the vest keeps fluid within easy reach for medium to long distance running. Lightweight comfort: Made from polyester for a balance of durability and low weight, allowing comfortable wear during extended activity. Organized storage: Ten front pockets provide quick access to essentials while a rear compartment holds a bladder or larger items. Versatile use: Built for running and hiking and also suitable for cycling, mountain climbing, and other outdoor pursuits. Water bladder color is randomly. Features Material: Polyester, lightweight and comfortable for sustained use. Size: Medium, suitable for medium to long distance running and general outdoor activities. Hydration compatibility: Fits a 2L water bladder, enabling continuous hydration without stopping. Storage layout: 10 front pockets for items such as water bottles, keys, phone, small snacks, and tools. Rear pocket accommodates a bladder or other larger gear. Practical scenarios Trail run: Carry a 2L bladder in the back, store gels and a phone in the front pockets, and maintain hands while covering medium to long distances. Day hike or mountain climb: Use the rear compartment for drinking bladder and front pockets for map, headlamp, snacks, and keys for easy access on the move. Cycling or commuting ride: Keep a bladder for hydration and use front pockets for phone, tools, and items. Why choose this vest Clear focus on hydration and quick access storage for active users. Simple, functional design in a lightweight polyester build for comfortable long use. Multi activity compatibility makes this vest a practical choice for a range of outdoor needs. Additional note Water bladder color is randomly.