Otter makes 3 basic non waterproof cases. The Defender, the Commuter and the Symmetry. Which did you order? The only one with a built in screen protector is the Defender.
The Symmetry is the thinnest I guess. It offers the least protection but is slim. I'm using the Commuter because Amazon had them for $28. LOL But I'd really rather have the Defender. It's slightly bulkier, but I like it. Otter has a Black Friday deal going with 40% off! It's a great deal on the Defender, but Amazon can beat it on the Commuter and the Symmetry.
Otter: https://forums.imore.com/e?link=htt...com/en-us/iphone-6s-plus-cases&token=_2lh3v-h
Amazon has the Commuter and Symmetry for $18 to $28.