Fitletic Arm Band Black L/XL - Forte FITS LARGE PHONES: Fits iPhone 8 Plus and Galaxy S8+ and similar sized phones. TRUE TOUCH WINDOW: Easily use your smartphone without removing it. ADJUSTABLE: S/M fits 7-11 arm circumference, L/XL fits 11-17 arm circumference. WATER RESISTANT: Arm band protects your phone from sweat and light rain. INTERIOR & EXTERIOR POCKETS: Conveniently carry your essentials.