These are my daughter's gym. Lol! They've not even seen a prototype or anything yet, so I'm sure there will be changes if they feel there will be issues with the back. There are similar straps on the current uniforms and they've been fine, though. Our parents are concerned with a bra working with it, but they have been assured that there is going to be a bra made to go with it. I like the uniforms, but I know that my daughter will fit it ok and things like bras won't be an issue for her. The uniform is a design that's been used a lot by Rebel, so looking at current uniforms using it made me feel like it will translate to real-life ok. I'm just sitting here waiting for more simple uniforms to make a comeback, though. Haha!