Very few times I come across clothing that fits "perfectly" off the rack. This sweater is one of those exceptions. A true tailored fit - slim on the sides, fitted through the chest, and length falling just below the waist (essential when it comes to sweaters). I sport an athletic build 5'11 180 lbs and the medium size does the trick. Bonobos has set the standard in my wardrobe.

Sweater has a great tailored fit, which is much better than any "slim fit" sweaters you'll find at jcrew/etc (which aren't actually "slim", just tight at the waist). There is a thin purple stripe down the sides of the body, which you can only slightly see in one of the pics (just a heads up). I'm ordering some other colors!