I recently purchased a pair of CW-X insulator expert tights and I must admit I'm impressed. Not only do they provide support to muscles and joints through the use of their patented conditioning web, but the fabric itself is very technical. When reading the words "temperature regulating" I didn't understand fully until I used the product. Not only does this product prevent me from getting cold when I'm running in the morning, it also doesn't make me feel too hot after my body warms up from running. It virtually eliminated the peaks and valleys I used to experience from first stepping out into the cold, then warming up from running, then cooling down as I walked outside to slow my heart rate down. Instead of all that I pretty much felt the same temperature the entire time I had the product on. Truly amazing! It also pulled the sweat right off my skin to the outside of the fabric so when I took them off, my body felt very dry and I didn't have that unbeatable urge to jump in the shower the second I finished my run. CW-X and these insulator expert tights are great. Hopefully they'll make a Pro version of these, as I prefer the support offered by the Pro tight when running.