This arm band is designed and will fit perfectly for apple iphone 7 plus/7(5.5")/6/6s (4.7"). And it will also fit cell phones such as the iphone 5/5s/5c, samsung s8 s7 s6 s5 s4, s3, s2, htc, with headphone support for most all phones as well as any phone that has a screen up to 5.8" COMFORTABLE AND BREATHABLE : High Quality Environmentally Friendly Material, Its Light Weight, Collapsible And Stretchable, Breathable, Its Delicate Texture Helps Absorbing Sweat.Also The Sweat-Proof Lining Allow Your Skin To Breath And Keeps Your Cellphone Dry At All Times In All Activities BONUS FEATURES: 1. Built With Earphone Hole: Put Your Headset Through The Earphone Hole At The Bottom And Connect Your Phone; 2. Our Armband Includes A Reflective Strip For Safe Running In Low Light Conditions. 3. Touch Screen Compatible: Enjoy Full Navigational Control Of Your Phone Such As Receiving Calls, Changing Music, Editing Text Messages Even Games Without Taking Out The Phone

Perfect fit for: Apple iPhone 8/7(4.7INCH)iPhone X , also Fits with iPhone 4/4s/5/5c/5S/6/6S & iPod Touch 3/4/5/6 Player,Galaxy s8 s9 S7 S6and any mobile device with smaller outer size than the iPhone 8/7,this is a smart and simple sports armband with Headphone Support for All Phones. Safety:the reflective strip circled around the sreen window, unnoticeable safety strip keeps you noticeable when running in low light scenario. No Slipping& Adjustable: The armband is designed using an anti-slip material so that it stays put for comfortable movement.The lightweight feel of this armband maximizes your comfort while you wear it. Come with an additional strip which makes the armband fit the big size arms easily.The double slots design also helps to adjust the armband to fit your arms more safely.