iPhone 7 Silicone Case

Let's start with Apple's own entry-level iPhone case, made out of silicone. It's available for both the iPhone 7 (£39/$35) and 7 Plus (£45/$39.99).
It's made by Apple, so you know you'll get a great, snug fit round your phone and boost its protection without compromising on design.
It is a tad expensive for what it is, however, so it's worth checking out some of the other options in this roundup.