1. Size: This fanny pack is big enough to hold keys, ID cards, wallets, mobile phones, earphones, power banks, passports and more. Suitable for most people who want to free their hands to carry the most needed items during running, traveling, walking, fitness, shopping, hiking and other activities.2. ADJUSTABLE BELT: This fanny pack comes with an adjustable nylon belt with a secure buckle that is adjustable and fits most waist sizes. You can wear it in front of your waist, behind your hips, diagonally across your chest or over your shoulders.3. Material: Strong waterproof nylon resists splashes or drips to ensure long-term use. Please do not bring it into the water.4. ZIPPER: This fanny pack is sturdy and durable with a smooth zipper and a non-slip zipper pull. You don't have to worry about zippers getting stuck and damaged.