iPhone 6s Plus Armband,Splaks Sports Armband for iPhone 6/6s Plus Running Cell Phone Holder, Light-Weight Water-Resistant Sweat-Free with Adjustable size and Key Cash Holder Sweat-Resistant: Made of Ultra-Thin & Light-Weight Material. It is Sweatproof, Waterproof, Durable and Hand washable. The Velcro is added to make sure the armband closed, which will prevent the sweat from infiltrating in the armband and keeping your cell phone from moisture. Breathable Micro Velcro: High quality Micro Velcro ensures our sports armband stays securely strapped in place. It is small enough to fit smaller arms, but you can also adjust the comfortable soft stretchable velcro strap, which allows up to about 15" biceps. Breathable Micro Velcro: High quality Micro Velcro ensures our sports armband stays securely strapped in place. It is small enough to fit smaller arms, but you can also adjust the comfortable soft stretchable velcro strap, which allows up to about 15" biceps. Strong sticky back tape: the strong sticky back tape ensures that the armband do not fall off when you are exercising. The strong sticky back tape supports more than one million times use Built-in Hidden Key Holder & Cutouts for earphones: Built-in hidden key pouch will help you carrying extra things when hitting the gym! You can put in Keys, credit cards, cash...etc. Cutouts allow for an easy access to headphones port and controls