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 Specifications:Material:- Fabric:100% eco-friendly Merino wool Care:- Hand wash with mild soap - Do not use fabric softeners - Do not bleach - Do not machine dry - Do not iron.