A versatile women’s merino wool base layer shirt, the 200 Oasis Long Sleeve Crewe combines casual comfort with technical performance. MerinoMerino is super lightweight, soft, non-itchy, non-clammy, warm in the cold and cool in the heat, and has a miraculous ability to resist odor. Because it was made in the mountains rather than in a petrochemical laboratory. Merino wool fibre is naturally renewable, recyclable and biodegradable.