Quote Originally Posted by tatormc
I've tried both and didn't notice a different as both shorts had the same chamois.
The current 2006 shorts use different chamois according to TE's website.

I personally like the length of the Ultrasensor short for 2 reasons: the more attractive spot the elastic ends up on my leg and also because it is long enough to hold up leg warmers.

Microsensor fabric is more comfortable to me than Ultrasensor. It might be because it wicks better. I wonder if the same benefit is true of the Ultrasensor over the Attack.