Merino wool isn't cheap. That's why I love these merino T-shirts from Quince: They're just $42. The Quince All-Season T-shirt is 100 percent extra-fine merino wool with a 165-gsm weave, which is perfect even on the warmest summer days where I live. (Admittedly, I think the hottest it got this summer was 92 Fahrenheit). I like the relaxed fit here as well. It's neither skintight technical nor overly loose and baggy. It fits like a T-shirt is supposed to.