Upgraded Anti-slip Woven Straps- Compared with the traditional elastic belt, our waist bag adopts high-density woven straps without elasticity, which can effectively prevent the waist bag from sliding down due to the shaking of items during exercise, and also avoid the straps scratching the waist muscles. Completely preventing sliding becomes the biggest advantage of this upgrade. With Two Water Bottles- As a bonus gift, we supply two water bottles at about 10 oz per bottle, so you will have enough water for short and medium distance runs. Place them in the bottle holder pocket and secure them in place with elastic straps to prevent them from falling, so that you can use them easily. Large Capacity- The hydration belt comes with a 18x10.5 cm main storage pocket for your phone and headphones. Two new hidden patch pockets on the back of the bottle holder can be used to store keys, credit cards and cash, etc., not only to prevent the phone from being scratched by sharp objects such as keys, but also to better protect your belongings. Durable & Comfortable- Made from neoprene material, this running waist pouch is waterproof and tear resistant, effectively preventing moisture from penetrating the inner layer of the waist bag. The breathable mesh backrest improves air circulation and keeps you cool and comfortable without chafing on your skin. Reflective Design- The reflective strips around running pouch is designed to enhance the driver's vision in low light conditions to ensure the safety of your night activities, perfect for people with a waist circumference of 23.6" - 51.2" (60cm - 130cm) for hiking, camping, biking, jogging, running and dog walking. Features: 1. Upgraded high-density woven straps effectively prevent the waist bag from sliding down due to the shaking of items. 2. Two water bottles provide enough water for short and medium distance runs. 3. Fits waist circumference of 23.6" - 51.2" (60cm - 130cm) . 4. Large enough capacity to store all kinds of running small items. 5. Reflective strips design ensure the safety of night activities. Warm Tips: Before use, rinse the water bottle with warm water to eliminate odors. Specifications: Material: Neoprene, Nylon Waist Circumference: 23.6" - 51.2" (60cm - 130cm) Pocket Size: 18x10.5cm (7.1x4.1 inch) Water Bottle Capacity: 2 x 300ml (2 x 10 oz) Weight: 190g Colour: Black Package list: 1 x Running Belt 2 x Water Bottles