I agree with you about the breathability of those merino t-shirts, but I think the author is right about their fragility. I feel like mine constantly get runs or shrink even though I’m careful (I’m a frequent business traveler and they do get heavy use). I’m considering switching back to traditional undershirts.
That's weird, because I am still wearing the same Icebreaker t-shirts I bought in 2015, a decade later, through many many washes. They have thinned out some, and I've added more new shirts over time to my rotation, but the very first one I bought is still perfectly wearable as a daily undershirt. I've never had one shrink, I do have some small holes in the oldest shirts, but nothing that impedes its basic function.
I think it's like Apple cables: for some they're frayed in a month, others still have perfectly serviceable 30-pin cables that they've used daily. Personally, I wear Unbound merino t-shirts and underwear, and they last for years.
(I'm also convinced that front-loading washers make clothes last longer because they don't literally beat your clothes to death.)
We haven’t utilized double-blind tests at our house or anything, but definitely makes a difference in clothing longevity for us. Popular consensus seems to agree, FWIW.
