--It does make you go up a cup size and helps lift and support your chest, but that's not really what I wanted from these (but I know many people desire this, so it is important to point out). I also think it helps your posture because it helps your back and shoulders stay upright and straight.
--I'm very petite but have a big chest. My problem with bras is that the straps don't adjust tight enough, so I'm not getting the support I need and my bra straps fall off my shoulders. However, with these I can wrap my straps around them and it is the extra tightness I need to keep my straps secure and help properly lift my chest.
--Also, I've used these with various tank tops that have different back designs (like razor back), because I can get my straps to follow the back pattern of my tank so I don't show any bra straps. I like that this comes in 3 colors, so you can chose the clip based on your outfit.
Overall, these bra strap clips are great and have given me some freedom when it comes to clothing and my bras, so I'm a happy camper.
Want to check this out for yourself? Here is the Amazon product link:
http://www.amazon.com/dp/B01FQTBCE2
*I received this product in exchange for my honest and unbiased review*