- Familiarity: I've put it through the wringer
- Fit: True to size
- Size Bought: small
I have 2 of these and they served me well ranging from cold weather cycling to snowboarding. It feels comfortable against the skin and really wicks away moisture - all throughout my snowboarding trip I didn't get sweaty nor did I feel like I needed any extra layers (LIFA + mid weight fleece mid layer + Burton Radial Gore-Tex jacket).
Sizing wise it's what I would call a performance or slim fit - small fits me fine, it's just that I'm on the chubby side of things. If you have a more slender/athletic build (but not too muscular) than I, it should fit true to size. Besides, a wicking layers needs to fit a bit tighter to work, right?