Accommodates Most Cases: The Armtrek Pro is specially designed with added space to easily fit most large phones, including iPhone 6/6s/7 Plus/8/x and Samsung Galaxy S9 / s9+ / S8 Plus S7 Edge/Note 2 3 5 AND their protective cases. Common case brands that are compatible include Otterbox/Lifeproof. Please read the description to see complete compatibility. PREMIUM MATERIALS & Universal Sizing: Made of stretch resistant neoprene. The Trianium ArmTrek Armband case for large smartphone easily bends, flexes, twists, and folds without warping. Multi-slot Adjustable Velcro iPhone Armband Will Fit Almost Any Arm Size Up To 14". TOUCH SCREEN COMPATIBLE: Enjoy the full use of your phone through the protective screen cover on the armband with fully touch compatible, easily answer calls, manage your playlist, or activate your stopwatch without removing the phone.