Back in the day, cyclists all wore wool, and Surly's 100% Merino Wool Long Sleeve Jersey is way better than anything they had back then. Wool is great: it's warm in cold weather even when wet and breathes in warm weather. And because wool wicks fantastically and is antimicrobial, the bacteria that causes synthetics to stink doesn’t build up. And that's good for everyone. The classic accoutrements are there, too: embroidered logos, 11-inch zipper and a zippered rear pocket.