Good quality socks. Just not ultra winter socks. Maybe best use is a slightly cooler fall ride. They are just slightly thicker at the front. They are not made from a winter material like wool. Rated lower due to being misled about them being ultra(z) winter socks. Unless 'ultraz' means something else?
These are the heavy Assos socks. They are one thickness in the black portion but the blue portion is much heavier - this puts more protection towards teh front part of your foot. Assos socks are great and this one fills the need at the top end when the temps dip and you need something to help keep your feet warmer
I was expecting a high performance sock from Assos for wet and cold winter riding in the Pacific Northwest. I have used the product on several rainy rides and have been unimpressed with the Ultraz winter sock. Save your money.
Wearing these socks enables me to bike without shoe covers in mid 40 F. Temps. The front half of the sock has more loft to material which creates air insulation.
Look cool, very comfortable, great for temps into the 40's. But nothing beats merino wool for temps that dip into the 30's.
WOW... Great Socks. Very Warm and comfortable.
good quality socks, good value, very comfortable and lite weight so not bulky.
Socks are very comfortable. Will likely buy a second or third pair.