M in MT

As cardigans go, this is the one you need. The fleece is durable and gets more comfortable after each washing. Pockets are key for holding stuff (duh) and warming hands on cool strolls, and the helmet-sized hood keeps you from looking like a big city accountant on vacation. If you're going for more casual wear (like a collared shirt underneath) then size up. If you're mostly going to wear this under a shell for more technical applications, it's true to size. This hoody will undoubtedly make your Top Ten "wear everyday if possible" list.