I like Terramar lightweight layers for construction-type work, I beat them up hard and they're really tough. Pretty good with abrasion, even the silkweight layers - though I only have older ones and I don't know if new ones are different. Survive through many many washings. Some of the 'silkweight' tops I have are more sheer than others, but I haven't had an issue with that in any respect. The lightest layers do snag pretty easily though, and threads get pulled out often, but again, so far haven't cared for my intended use. Comfort-wise they're okay, but only okay, I love my Capilene layers a lot more. They don't stink up as quickly, though, which is a plus.
However, I don't like the flatlock seams, Terramar seems to make them especially itchy on some garments. The fit is also horrible for me, very short in the arms and torso when I want a form-fitting layer (6'3" here). For their affordability I like wearing them for work where they'll go through hell, but for comfort, fit, and performance I'll definitely stick to my Cap 1/2 layers.