Merino wool fibers are the perfect all-natural solution for keeping you comfortable when working up a sweat in cool weather. Soft, breathable, temp-regulating, and even odor-fighting, the Icebreaker Long-Sleeve 200 Oasis Crewe leverages merino wool's beneficial properties, along with smart design details, to optimize your comfort during cold-weather activities. The offset shoulder seams prevent pack rub when you're out exploring the backcountry, and the flatlock seams throughout the garment ensure you move comfortably through your day on the slopes or in the hills. Underarm gussets offer mobility as you pole plant or build an igloo for winter camp. The crew neck and slim fit allow for easy layering, and the drop-tail hem provides extra rear coverage for a worry-free fit.