Pretty nice case - using the new lightning cable headphones with it if you have the phone in a case is a little awkward, but I think it is designed to have the phone go straight in

I had a hard time finding an iPhone armband that would fit the iPhone 7 while in a protective case

but I believe the majority of people prefer the slimmer cases nowadays (most people need to fit their phone in a pocket)

I like that the arm band fits my iPhone with or without my protective case

I assume they make it a bit larger for bulky cases like

They specifically say it will fit the iPhone 6s without having to remove the defender case