Looking for the ultimate all-purpose T-Shirt? We thought you might, so here you go: Pluto, made of the finest, mulesing-free Merino wool, sports 17. 5 Micron and a practical chest pocket that has room for more than just our owl friend. Merino wool - the overachiever of fabrics - cools in summer, warms in winter, and never gets smelly, guaranteeing enduring comfort. This shirt is a true team player.