unfortunately too tight so won't get much use
I purchased this bra specifically to use underneath my tri-suit because I wanted more support than the suit could give (not the suit's fault--my hips are about 2 sizes larger than my top, so anything one-piece is most likely to be a bit loose on the top).
I was apprehensive the first time I used it (on a bike/run brick) because I'm used to wearing sports bras of heavier material. Given the lightness of the material, I was surprised by the amount of support this bra provides. It worked very well with the suit, in all the sports.
I am very picky about sports bras and this one is the best!!! I bought one March 2007 and I loved it so much I bought 2 more online a year later when I had lost the weight I had wanted to. Great bra --- completely worth the $$$!!!!