Fit for ALL Below 5.7” Cellphones : The running arm phone holder fit iPhone 7 plus/7(5.5")/6/6s (4.7"), iPhone 5/5s/5c, Samsung s8 s7 s6 s5 s4, s3, s2, Moto,Google, Oneplus, ZTX and any phone with a screen upto 5.7" inches cellphones for our running.Perfect for All Activities : The running armband case can be a gift for men or women, if he or she like exercise, when they in gym, high intensity workouts, extreme exercise, fitness, yoga, casual walking, running, cycling, hiking, fishing, cross training, mountaineering, camping, travelling, daily leisure, etcDual Pockets & Dual Zipper Heads : Dual pockets and zipper heads designed for closure safer and storage spaces larger for our cellphone, earphones,cable, charger, keys, ID cards,cash, and other accessories, prevent scratch for us phone.Environmental Material More Comfortable : Highly quality breathable fiber environmental spandex material easier absorbing sweat and comfortable for wearing, prevent for cellphone slip. The Velcro fastening is adjustable, base on your body shape, between with 9.5”-16"Earphone Port Design : Special earphone port designed for our enjoying the music conveniently, provide more pleasure during your running. We will offer guarantee within 30days, If you have any question, please contact with us in your first time,we will help you soon.