The Icebreaker 200 Oasis Sonebula Long Sleeve High Neck for men is a versatile base layer designed to keep you comfortable during a range of outdoor activities. With a higher neckline and long sleeves, it offers extra coverage whether you’re hiking in cool weather or layering up for a winter adventure.
Made from 100% merino wool, this slim-fit longsleeve combines natural temperature regulation and moisture management with a soft next-to-skin feel. Flatlock seams reduce friction and chafing, while raglan sleeves allow for a full range of motion—helpful when you’re shouldering a pack or scrambling over rocks. The close fit helps trap warmth without adding bulk, so it layers easily under jackets or mid-layers.