I love the simply merino baby undershirt. It is great quality. It is thicker than some of the other wool baby undershirts I have purchased elsewhere. Keeps my baby just the right balance,not too hot nor too cold but just right. Simply merino is quickly becoming my go to for merino wool base layers for my little ones. Thank you for such a wonderful and cozy product. I hope they continue to make these and maybe some long sleeve ones in the future and perhaps more colors. A Mama can hope.