That Brave Person swim bikini is the same suit I mentioned and posted photos in
this post. All of my photos are of the suits with the liner removed. I think if you left the liner in and got the size right, you would probably be fine if you're comfortable in a smaller brief. That suit is more like 2 inches on the sides. If you're afraid it might be too brief for starting out, it's always better to start bigger and work your way down. My personal favorite, is the
Truwest Racer Suit. It has 3 inch sides and is super comfortable, with or without a liner. If you have any questions or want to see more pictures, send me a message.