This is a sports fanny pack with water holder, made of soft scuba diving fabric, breathable and comfortable. The handfeel is delicate and elastic, with shockproof and other characteristics. The three-layer compression rubberized elastic waterproof fabric effectively prevents sweat from seeping into the arm bag and protects your cell phone. Night vision reflective strips, reflective effect is strong, so you can exercise at night without worries, increase the safety of night running. Reserved headphone hole, humanized design, listen to songs while exercising, enjoy the exercise.