Every man needs a stash of reliable, top-quality navy jumpers that they can keep in the wardrobe all year round and turn to when the weather dips a little. The navy Jarvis is exactly that and is also a great choice for any man looking for a touch of style. It's crafted from soft cotton, has a crew neck (making it great for layering over shirts) and is finished with a ribbed hem, neck and cuffs.