Trail Marathon Running Accessories 【Breathable Running Vest】 The running vest is designed for a variety of outdoor sports, suitable for running, hiking, trail running, cycling, and other activities. The running vest is made of breathable material and mesh fabric for excellent sweat absorption and air circulation. It weighs only 200 grams and will not slow you down when wearing it 【High Visibility Reflective Strips】 For safety when running outdoors, the running vest is equipped with high visibility reflective strips on both the front and back. They provide increased visibility in low light, allowing you to run longer, safer, and more comfortably 【7 Storage Pockets】 Our running vest has 7 multifunctional pockets to meet all your carrying needs. On the front, there are two adjustable pockets for a 250-500 ml water bottle, secured with a rope to prevent shaking or falling. Additional pockets provide space for headphones, keys, snacks, and energy bars. The rear zippered pocket is perfect for storing a light jacket, hat, or towel, while the larger compartment can hold a 1.5L hydration bladder 【Easy to Adjust for Both Men and Women】 Sizes XS to XL (75-122 cm chest). This hydration backpack features easily adjustable side and front attachment straps that minimize bounce and slippage and prevent chafing caused by ill-fitting straps, effectively distributing weight and reducing energy consumption 【Multifunctional Outdoor Use】 Whether you're training for a marathon, trail running, or just jogging, this running vest is the ideal companion. You can carry essentials like your phone, keys, headphones, maps, hats, snacks, or a light jacket while keeping your hands free. It's also an excellent gift for outdoor-loving friends and family