The JNBY Finger Pocket Cardigan will definitely keep your digits toasty warm with its glovelike design.
The wool sweater has two side pockets dangling at the side that are perfectly tailored to fit your hands. Just make sure you don't put change in them -- you wouldn't want to go fishing for it in the fingertips. Otherwise, the JNBY Finger Pocket Cardigan is a great way to keep your digits warm. It's too bad the gloves are not detachable; I always forget my mittens.