So far I've only worn the liners, and I love them. I have poor circulation, causing my fingers to get numb, so finding gloves or mittens warm enough is a challenge. The liners are great for walking around town when it's cold, wet and windy. There's a little interior pocket for a hand warmer, too. I plan to wear the full mittens while commuting across the bay. I haven't had a chance to try them out for this purpose yet, but I expect they'll do the trick.