Description: Water Bottle Holder: This running belt can tighten the bottle, waist packs won't shake with the water bottle while running and it won' your arm swing,for both men and women. Reflective Strip: This hydration belt has good reflective effect at night, so you can exercise at night with confidence. Adjustable: Fanny pack with bottle holder can adjust the size of the buckle strap, fit almost all hips.This belt perfect for running, fitness, hiking, hiking, cycling. Feature: This hiking pack has a scientific design, come with jack, so you can enjoy music during sports, and it uses waterproof cloth, which can protect your mobile phone from the rain. High Capacity: The bottle running belt has two zipper pockets, with inner layer and key hook in the main expandable stretch pocket, separate your valuables reasonably, so you can keep your money, tissues, cell phone reasonably safe. Specification: Material: Nylon Size Chart: Size: 31x18x5cm/12.20x7.09x1.97inch Package Includes: 1 Piece Running Fanny Pack Waist Bag Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful online shopping!