Castelli clothing has become my new addition and the wind tights fulfilled all expectations. I tend to run a little warm so finding the right combination can be difficult. For that reason, the wind tights I will reserve for under freezing temps and use my non-wind Sorpasso for warmer temps in the 30 to 45 range. The difference is noticeable. On a recent 23* day, I could feel the warmth of my legs as I warmed up, a sensation which didn't leave me for the entire two hours on the bike. Casstelli claims this is the limit for these tights but I plan on depending on these for temps down to the teens. The fit is typical Castelli, snug. The X2 chamois is my only preference for cycling as I have taken more expensive shorts and tights and placed them in storage and said "Good By" to near constant saddle sores. Now the looks, well, you just sort of make a statement when you wear Castelli, bold but not billboard-ish, team kit look. If the quality is as good as other Sorpasso tights, which I would expect they are, than I can expect years of use before they show any wear, as has been my experience.