The 200 Oasis base layer range sets the standard for all others to follow. Made from icebreaker's most versatile merino jersey fabric, the long sleeve crewe offers year-round layering performance for any activity.

Setting the standard for all others to follow, the 200 Oasis Long Sleeve Crewe Elevation Line is icebreaker's best-selling base layer—a versatile active top for year-round layering and everyday comfort. The original artwork features a unique infographic showcasing elevation lines, topographic maps, and mountain anatomy.