Anti-slip technology provides an ultimate fit and friction-free comfort: The upgraded running belt with hook-and-loop tape provides a secure fit that won't loosen during running, offering ultimate freedom of movement and comfort. Tailored for hips measuring 20-47 inches (50cm-120cm), it's designed for low-waist wear, ensuring complete comfort by eliminating friction. This allows for a snug fit that won't bounce or chafe during use. Innovative 45-degree angle bottle holder design: The angled design reduces weight on the hips, ensuring no bouncing during movement and conforming to body curves for a comfortable carrying experience. No bouncing, stable installation, and easy to use, perfect for races requiring lightweight and speed. Evenly distributes the weight of your items, keeping you bounce-free while running, hiking, marathons, or cycling. Multifunctional bottle holder fits most bottles: The bottle carrier offers flexibility to accommodate different bottle diameters and features a securing loop for added safety. Accommodates bottle diameters up to 3.2 inches (80mm). Water bottle not included. Spacious design and sports-specific features: This running belt features two zippered pockets, an inner layer, and a key hook located in the main expandable stretch pocket, keeping valuables organized. Fits most smartphones up to 6.6 inches, such as iPhone 11, 8 Plus, 7S Plus, 6 Plus, perfect for credit cards, ID cards, keys, tissues, chocolate, energy gel packs, and running accessories. In addition to a small pocket with a compression elastic band, it can secure clothing, gloves, hats, etc. Super easy to wear and secure: Features an earphone hole for listening to music while running. Reflective tags on the pockets ensure your safety during nighttime runs. Perfect for endurance running and training. Also suitable for walking, dog walking, hiking, golf, skateboarding, snowboarding, and cycling.