Just like our favorite t-shirts, cardigans are a proverbial closet staple for us — they're the ultimate layering piece. You can throw them on over everything from a tank to a tee to a button-down, and then fit them in easily under a blazer or coat when the weather is chilly. What's more, you can throw it on over your shoulders for a preppy feel or tie it around your waist when you're feeling sporty (or looking to channel a little '90s nostalgia). With the new year here, we think it's prime time to give your closet a complete cardigan refresh. That means adding styles that are simultaneously comfy and statement-making. We love details like shoulder cutouts, peplum, piping, cool prints, asymmetrical cuts, and more — you do too? Then shop 40 of our editors' picks below to get started.