This base layer shirt is part of Ice Breaker’s Body Fit line in thickness 200. It’s used and wrinkled from storage, but in excellent condition with no known flaws, runs, etc. Merino wool is perfect for travel, layering, outdoor activity, temperature regulation, camping, fitness, moisture wicking, and quick dry. I developed a wool allergy, so check my closet for other merino items (Smartwool, etc) if you’re into that. :)