Icebreaker Bodyfit Long-Sleeve Crew
You can wear this piece pretty much anywhere. I wear it as an under layer snowboarding and it keeps me super warm, but still wicks away moisture. The bodyfit weight is also great to wear running on colder days. Does a great job of helping regulate body temperature. It's not scratchy at all, and holds its shape really well, but doesn't hold odor. I'd recommend merino to anyone!