As some people described, the angle between your feet can cause lots of tension in your knees.
That's why the Rotating Straps were improved for the use on TT boards. Customer asked for better pads, than the previous 1/2 inch model to glue on deck.
The basic model is similar to the directional version, but the TT version works with sliding heel pads.
Get more info at http://www.sportsgear-solutions.com/
: watch a video and read the News article.
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