This mid-layer shirt can also be worn directly against the skin if needed, thanks to its comfortable material. Merino wool keeps you warm even when wet and resists odor build-up. Lasting merino wool garments offer excellent value for money. The material is merino wool, so you get all the benefits of wool plus a soft feel: steady warmth, comfort even after sweating, natural odor resistance, and less need for washing compared to synthetic fabrics. Individual merino wool fibers are significantly smoother than regular sheeps wool. As a result, many people who find wool itchy can wear merino garments without problems. Initial feedback on the Paju (Finnish for willow) shirt after it arrived in our warehouse: "Runs small. Sleeves are a bit short, and so is the length." - Merino fiber fineness: 16 microns, very soft feel - Machine washable, like all our other merino wool base and mid layers - Machine washable: do not use bleach or fabric softeners; ideally wash with wool detergent and on