Azamat Smythwrote a review of Castelli Nanoflex Leg Warmers on October 16, 2014
Familiarity: I've put it through the wringer
I have had nothing but great experiences with this leg warmer.
First the fit, is great. I am 6'1" about 160 pounds and I chose a medium. I had some slight bunching up on the back of the knee but no discomfort like others have had. The bottom zipper also did not create any irritation by the ankle which I have seen in some leg warmers. Warm enough to keep me warm in ~3 degree celsius temps and cool enough in 20 degree celsius. Overall excellent leg warmer and highly recommended, if you have an issue it is probably due to improper sizing.