evo.com | Oyuki Long Underwear Tops > Designed specifically for those who prefer natural fibers, the Oyuki Merino Long-Sleeve base layer is super warm and made from 100% fine Australian Woolmark(R) merino wool so it is soft on your skin. 84% Merino Wool / 12% Nylon / 4% Spandex Flatlock Seams Relaxed Fit 200gsm Australian Woolmark(R) Merino Wool This product may contain chemicals known to the State of California to cause cancer, or birth defects, or other reproductive harm. | Oyuki Longsleeve Men's 2026 - 2X-Large Black | Nylon/Spandex/Wool