- Perfect Fit: This fitness phone armband is designed to accommodate most arm sizes with an expandable circumference of 10" to 14". Ideal for arms around 12". Please measure your forearm or upper arm (not bent) to ensure a fit of at least 10" - 11". - Product Details: Includes 1 Pure Blue Armband Cover (5.7" L x 4.7" W) and 1 Pure Black Armband Cover (5.7" L x 4.7" W). Each weighs only 0.5 oz and features a front hidden pocket. Versatile design allows use as a wrist wallet, armband, or shoulder strap pouch. If you receive only one, contact us for the other. - Ample Storage: The hidden pocket is spacious enough to hold most smartphones (up to 5.8" in length and 4" in width) along with credit cards, IDs, cash, coins, and keys. Keep your essentials secure while on the move. - Lightweight and Comfortable: Crafted from quick-drying polyester and spandex, this armband is flexible, slim, and lightweight. It provides a comfortable fit without chafing your skin, making it easy to wear for extended periods. - Practical Use Cases: Perfect for running, cycling, or working out at the gym. Keep your phone and belongings close while enjoying freedom of movement. Ideal for outdoor activities, workouts, or daily commutes. - User-Friendly Design: The package seal can be easily opened by hand; no need for scissors. Experience a hassle-free setup and enjoy your workout without distractions.