After testing Power Balance for some months now, the Cardiff Blues are on-board, they were wearing Power Balance during the season and when they acheived European Cup glory against Toulon on 23rd May 2010
This image is awesome and shows the legend Martyn Williams together with his team-mates at the photo shoot and here is the link to the Blues official Press release.
PRESS RELEASE - http://www.cardiffblues.com/33_5116.php
Also check out these images from the game.
Cardiff Blues v Toulon