Long time reader/lurker, first time poster. MANY thanks to all of you for the packing tips and advice here. I've lost track of all the good things I read here that I've implemented in my travel protocol!
Last summer, I purchased a few different merino tee options for wearing at home (Colorado) and for a trip to Portugal last fall. Portugal was unseasonably hot, so my tees got more of a warm weather test than I'd planned for initially.
Merino.tech - I have the lightweight (165gsm) in short and long-sleeve and the midweight (250gsm) in long-sleeve zip front. They appear to be pure merino, both according to the tag and the feel of the material.
165 gsm - This fabric is lovely and soft, no itch. I've been wearing the long-sleeve tees nonstop this winter. It's a slim-ish fit, but not tight, and true to size. At home, I wash them either in a delicate bag or inside out in cold water and hang dry. I've had no problem with pilling or shrinkage. While traveling, I enjoyed one of these tees in the evening or first thing in the morning, but it was too warm to wear any other time of day. I didn't wash this tee while traveling, so not sure how well it washes or dries in the sink.
250 gsm - This has more of a sweater feel than a tee feel. The fabric is again really soft and buttery. No itch. However, this one has started to pill a little and shrinks mildly when washed. I have stretched it out and re-shaped it when I pull it out of the wash and it's been okay, but it doesn't seem to be as forgiving as the 165gsm tee. But did I mention the fabric? It's like a warm hug on a cold day.
The colors of Merino.tech are mostly lovely, but I did get one heathered color that I sent back because it was just a weird blend of different color threads that didn't go together at all. Zoom in closely on their pics to see what the fabric really looks like.
Smartwool - I have the Active Ultralight tee. Soft material, not itchy, but borderline see through (plan your undergarments accordingly!) This is a merino/tencel blend. It is light and comfortable for hot weather. It washes and dries in the sink beautifully. No shrinkage or pilling that I've noticed.
Icebreaker - I have the Tech Lite II tee. Icebreaker says this is 100% merino, but it is definitely less soft and more itchy than my other merino tees. The material is also a bit too much for warm weather. I find the weight and little bit of itching slightly uncomfortable, not terrible, but not ever the first tee I grab when others are available. This one also shrank a bit in the neck and armpits, so the fit is less nice than when I first got it.
Icebreaker is having a Flash Sale on past season tees right now, so it's worth checking out. I just ordered a Sphere tee, which I'm hoping will be better than the Tech Lite.
Let us know what you pick!
Amy