evo.com | Icebreaker Long Underwear Tops > The Icebreaker Oasis 200 Base Layer Crew Top is an excellent midweight base layer for activity in cool temperatures. Naturally odor-resistant, breathable, and warm, merino wool is one material you might not want to live without. 100% Merino Wool Flatlock Seams Prevent Chafing Set-in Sleeve Construction with Raglan Back Underarm Gusset for Comfort and Mobility Offset Shoulder Seams Prevent Pack Rub | Women's Icebreaker 200 Oasis Base Layer Crew Top 2024 - Large Black | Wool