Color: Black Material: Spandex + Nylon + Polyester Size: S Purpose: To store water bottles, mobile phones, headphones, and other daily necessities. Suitable for: Cycling, running, fitness, and other activities. Product Description: 【Durable and Long-Lasting Design】: Made with high-strength fabric for excellent durability. The surface treatment prevents fabric deterioration from rain and sweat, allowing for safe use even in harsh outdoor environments. 【High-Elastic Material, No Deformation, No Burden on the Waist for Long-Term Wear】: Uses a special high-stretch fabric that stretches freely and returns to its original shape. It has no constricting feeling and fits the body comfortably. 【Breathable Net Material, Not Stuffing, Refreshing During Sports】: The part that contacts the waist uses a breathable net, efficiently expelling sweat generated during exercise and preventing heat buildup. 【Lightweight and Large Capacity, Easy to Move, No Wobbling During Jogging】: The main body weight is reduced to the extreme, achieving an airy lightness, while the 360° circular pocket can store all necessary items such as smartphones, earphones, and water bottles. 【Multi-Scene Compatible, Covers Everything with One】: Ideal for sports scenes such as running, cycling, fitness, and yoga, as well as for organizing luggage during hiking and travel, and for daily commuting and shopping. ※Note: 1. There may be slight errors in manual measurement, please understand. 2. Due to the influence of the display and lighting, the actual color may be slightly different from the image.