Features: DURABLE MATERIALMade of nylon material, elastic fabric, four-dimensional stretch structure, rebound without deformation, light and compact, made of exquisite craftsmanship, the buckle is thick, durable and not loose. FIT BODY CURVEThe running bag is made of overall elastic material, which is close to the body and fits the curve of the body better, the waist is adjustable, suitable for different people and more comfortable to use. ELASTIC RINGThe side waist of the running bag is designed with elastic ring, which can hold 4 energy jellies to replenish physical strength in time, to help you maintain your physical strength more easily during exercise. NIGHT REFLECTIVEWith night reflective design, it is easier to be seen at night, reducing the occurrence of danger and ensuring your safety, equipped with a headphone jack, you can carry headphones to listen to music, more convenient. SWEAT ABSORBENTAdopt waterproof and breathable design, quick-drying and absorbent, more suitable for summer use, not afraid of sweating or discomfort, will not feel sticking to your body all the time. Specifications: Material: nylon Color: black Suitable mobile phone size: 7.2inch and below Running bag size: about 20 x 3.5cm/7.87 x 1.38inch(length x width) Suitable for waist circumference: about 60-130cm/23.62-51.18inch Suitable for sports: sports, running, etc. Gender: unisex Package Included: 1 pc x running belt Note: 1. Due to the light and screen difference, the items color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.