High-quality materials:This running vest bag is made of selected high-grade neoprene SBR, which is light and comfortable, the material is waterproof, comfortable to touch, and comfortable to wear when running; the reflective running vest weighs 200 grams, which is lightweight and does not increase the burden. Reflective design: The fully reflective printing design is adopted to increase the safety element, which can also be noticed in the dark. The reflective strip will reflect light under the illumination of the light, making it safer to travel outdoors at night, ensuring that people or drivers around you can Avoid in time to make running safer. Adjustable Waistband: The running chest pouch features high-quality hook and loop Velcro flap and adjustable waistband, suitable for most men or women with bust between 70-160cm; multifunctional running vest is suitable for most outdoor activities, such as running, training, dog walking etc. Specifications: The size of the reflective running belt with bottle holder is 57cm x 31cm; there is a mobile phone holder on the front of the vest, which can accommodate various types of mobile phones, the size of the mobile phone holder bag is 18cm x 10cm, with a Velcro cover, the mobile phone is tightly fixed on the holder In the bag, it does not bounce up and down. ✓Structural design: There is also a secret pocket inside the front phone holder pocket to store documents or other small items; two additional pockets on the shoulders on both sides for keys or other smaller items; a water bottle pocket on the back, With a water bottle fixing rope, it can help to fix the water bottle better without affecting the safety.