High Quality materials, soft and delicate, elastic, shockproof, sweat & water resistant. Durable magic tab, fasten the strap tightly enough. The transparent cover convenient control touch screen, with earphone cord wrapper to tidy the earphone cord neatly to the arm band while listening to music. Thoughtful design with additional storage, capable of accommodating small keys or anything. Double buckle, can flexibly adjust the degree of tightness, suitable for different sizes of the arm (10.6 to 16.2 inches). Perfect for iPhone 6, Galaxy S6, Galaxy S6 Edge, Galaxy S5. Your phone will fit in it with a slim case still on.