Description Material: Nylon Color: Black Size: As show Package: 1 pc vest 1. The whole main body adopts hollow mesh structure to deliver constant air circulation against the skin, cutting down sweat buildup and stuffiness during continuous high-intensity outdoor workouts and long-distance endurance activities. 2. Multiple segmented storage spaces including zippered compartments and drawstring pouches provide separated storage zones for mobile devices energy gels keys and small personal workout accessories without loose item shifting during movement. 3. Reflective strip layouts are arranged across front and back sections to boost visibility in low light conditions such as dawn dusk or night road training and cycling, bringing extra safety for outdoor activity participants. 4. Equipped with multi-position adjustable fastener straps around waist and sides, allowing users to modify tightness freely to fit different torso shapes and avoid bouncing or slipping while jogging climbing or riding. 5. Compact wearable vest design replaces bulky traditional backpacks by distributing weight evenly across chest and torso, freeing shoulder pressure and maintaining flexible upper body movement for all kinds of fitness and outdoor travel scenarios.