Merino blend fabric is smooth, breathable, and comfortable
Slim fit cuts down on excessive bulk
Familiarity: I've used it several times
To be honest at first I was like hmm running in wool? I do this when it's chilly, but in the heat, just doesn't seem right, but I'll give it a try. I couldn't have been more shocked, I wore this inside on the hamster wheel without a fan and was so comfortable it was insane. That sticky feeling you get when wearing shirts inside? Nothing. not a second did I feel like that. It honestly seemed to even feel cooler the more sweaty it got, and like I said no fan, so not sure what was going on there. I'm hooked and couldn't be more happy, Price may be high, but it is well worth it and with wool... no stank!!!