I've heard lots of good things about wool clothing for cycling and decided to see for myself if it is true. I've been wearing a wool jersey from MEC [thanks Sarah!] and a some 3/4 tights from Ibex. So far they are both comfortable over a wide temperature range and don't seem to get smelly. Plus they do look more classy than their typical synthetic counterparts. I'll keep using them for a the majority of my training this spring and report back when it warms up and I switch to lighter garments.