The Icebreaker Women's Oasis Long Sleeve Crewe is a lightweight and breathable base layer top that is perfect for active pursuits. It is made with 100% Merino wool, which offers natural temperature regulation, moisture-wicking properties, and odor resistance. The slim fit and flatlock seams provide a comfortable and chafe-free experience. Whether you're running, cycling, or climbing, this top will keep you comfortable and dry throughout your outdoor adventures.