Familiarity: I've used it once or twice and have initial impressions
Fit: Runs small
Size Bought: Large
I actually agree with other reviewers that it was a bit smelly out of the box. A little musty/dusty kind of smell like it's been stored in the stock room for a long time (maybe that's why it's on sale?) . Gave it a wash and it's fine. For me the large fits nice and snug around my chest, torso and upper arms which is what I like. Sometimes I like to wear just a long sleeve base layer with short sleeve jersey for milder temps, but this one is a little loose around the wrists. So I'll probably wear it mostly under jackets and long sleeve jerseys.