Product Basic Information: Applicable Gnder: Neutral / Male and FeMale Material: polyester fiber Color: Black, Hemp Gray, American Flag, Happy Blue, Colorful Camouflage, Pink Camouflage, White Forest, Rainbow Colors Capacity: S, M, L, XL Applicable Scene: Outdoor Sports Product Size Chart: SIZE / CM S M L XL Circumference 21 24 27 30 Length 18 18 18 18 Suitable for ARM Circumference 19-23 24-26 27-29 30-37 Product Feature: * Stretch Skin-Friendly Fabric * Reflective Design * Small Size and Large Capacity * Multiple Colors to Choose from * Suitable for Multiple Scenarios the phone sleeve for running are designed with safe zipper, which make your items safe, and you don't worry about dropping your phone when you exercise, providing more convenience for you this arm bands for running can release your hands, so you don't have to leave your phone in your pocket, suitable for gym, training, sports, fitness, yoga, walking or outdoor activities