I use the UV protection buffs in the summer and just adore the product. They're really versatile, so I can have a Sahrain, hat, headband, whatever depending on whether I'm running, biking, hiking, or trying to hide horrible helmet hair. As it got colder, the need for a warmer Buff arose. I poked around online and saw that there was this wool version. I ordered it before my last century bike ride of the season, and it arrived just in time. The high that day was 41 degrees and happened at the END of the 100 miles. We rode most of the morning in sub-30 degree temperatures. This thing kept me warm and because of the extra-long size it worked very well as a helmet linter. The only problem is that it's a TINY bit too big (my head circumference is 23 inches) so it was a bit droopier than I would have liked and will not stay put around my face. My summer Buffs fit perfectly so I wasn't expecting this. Despite the size issue (which is minor) I still use this thing constantly!

After the century I have been using the Buff on a daily basis for winter bike commuting. It's super-warm, but thin so it fits well under my helmet. I wear it every day, usually twisted around as a winter hat with a thicker brim over my ears. The wool keeps me toasty and even though I've done some biking in pretty cold temps already this fall, I've been toasty warm under the helmet. I definitely recommend this product, but if you have a smaller head than I do and want to use the wool Buff as a balaclava I would be careful as it may be too big for that.