I really like these gloves.  They''re at least adequate for 20 degree temps.  They breathe well and I like the soft fabric thumbs in case you need to wipe your nose.  Since they are unisex, they were bigger than I thought.  I wear a women''s Small, so for these, I needed the XS.

As an aside, if you run outside, running gloves are nice (compared with just regular gloves).  You''re really warm with loose fists, then if you get a little too warm, open your hands and the temp change will cool you off a bit.  I debated whether I needed real running gloves, and I am happy I got these.