"What Our Gearhead® Experts Are Saying: ""This is one of those base layers you end up wearing year-round. The 200-weight merino is warm on cold mornings, but it breathes incredibly well when I’m working hard. The seams are thoughtfully placed so they don’t rub under a pack, and it never holds odor—even after big days on the skintrack."" We love how the Icebreaker 200 Oasis LS Crew Top brings dependable comfort to every season. Made from 100% merino wool, it naturally regulates temperature—keeping us warm when the weather turns cold and cool when we start moving. The soft merino jersey feels great next to skin, offering breathable, odor-resistant performance that excels during long days in the mountains and everyday adventures alike. Thoughtful construction makes the Oasis even better. Gusseted underarms support easy movement, offset and flatlock seams minimize pack rub, and a drop-tail hem adds coverage when we’re reaching, bending, or layering up. Whether we’re ski touring at dawn, hiking crisp trails, or traveling light, this top delivers the comfort and reliability we want in a true do-everything base layer."