David B.wrote a review of Craft Active Comfort RN Base Layer - Short-Sleeve - Men's on May 28, 2017
Familiarity: I've used it once or twice and have initial impressions
I needed a base layer for commuting; it has to look civilian enough to wear under a shirt at work yet be sporty enough for a medium-effort commute. This one does it at half the price of merino.
The size is consistent with Craft/Euro. Most of my kit is medium so I got M and it's just a tiny bit loose, perfect. My US size is small.
One issue: the sleeves are very long and they stick out from a polo shirt by over an inch , an interesting look (obviously not a problem with long-sleeve shirts)