Merino wool makes this performance base-layer hat soft, comfortable and naturally odor resistant. Great for winter trail runs, springtime climbs, or autumn hikes, the lightweight wool fabric performs across a range of temperatures, dries quickly, and breathes to prevent overheating while on the move. Our wool is sourced from humanely raised, non-mulesed sheep. Features 100% eco-friendly Merino wool Lightweight construction;125g/m2 for versatile, all-season performance Soft and comfortable Dries quickly, breathable, stays warm if wet Naturally odor resistant Sourced from non-mulesed sheep Specs Fabric Content: 100% eco-friendly Merino wool Care Instructions: Hand wash with mild soap Do not use fabric softeners Do not bleach Do not machine dry Do not iron What is Sheep Mulesing? https://en.wikipedia.org/wiki/Mulesing