Material: This running fanny pack is made of high quality scuba fabric. which has the functions of sweat absorption. of breathability. of sweetness. shock absorption. waterproof. etc (for splashes or drips. not fully waterproof. do not put it in water) Large capacity The main storage of this 19.8 x 9.9 cm waist bag can hold all the smartphones. The sub-warehouse can store keys. carry kettles and cash. other essentials. The size of this pouch can be adjusted freely Adjustable elastic strap: fits waist sizes from 68.6 cm to 114.3 cm with elastic and adjustable strap. You can adjust the size of the waist bag according to your needs. Thick wear-resistant buckles are firmly fastened and not loose Safety and fashion Reflective strips on the waistband make it easier to run in the morning or at night. The zipper on the front makes it easy to reach the phone while running. Many people use this running belt as a money belt. It stays firmly on your body and doesn't tearPerfect auxiliary fitness equipment: If you like to run. to exercise. of hiking. of the bike. of training. other sports. then this belt is perfect for you. Lightweight bum bag of exceptional quality and comfort. your fitness partner.