While working on printable wire charts for our new line of underwires available at Arte Crafts I created this diagram just to show at a glance the difference between a regular style underwire and a vertical style underwires that is ideal omega shaped breasts. This is just a quick sneak peek at a post I have coming up talking about the different styles of underwires and which bra styles they match up with. I used to be super confused about the different kinds but I discovered a way of explaining the differences that is easy and simple to understand.
The two wire sizes compared about both a size 36. This image might not appear to scale in your browser but you can see the relationship between the two styles. The vertical is the one on the inside.