KEYWANTS Sports Armband with Key + Credit Card Holder for iPhone Samsung , Water Resistant Soft Lycra Good for Running Biking Walking 1. ADJUSTABLE STRAP: Fully adjustable strap. Fits arm size ranging from 9 to 15 inches. 2. SOFT & WATERPROOF MATERIALS: Made of comfortable high-quality waterproof lycra, super soft and light. 3. WORRY-FREE PHONE OPERATION: Enjoy the full use of Smartphone, Perfect fit for 5.0/4.7 inch Screen : Apple iPhone 6/6S Samsung Galaxy S7/S6/S6 Edge etc.. 4. SMART DESIGN FOR HEADSET: Easy access to the 3.5mm audio plug for four cut-out ports design. And easy carrying headset Cable for Cable Attachment design. 5. INNER POCKETS DESIGN: Easy to keep mobile, keys, cards & money separately.