There are a few signs that show you've got a good boyfriend coat on your hands - it's oversized allowing for several cozy layers of clothing underneath, has large masculine lapels, and is of good enough quality to last you a few seasons. From there the options (color, patters, single or double breast, etc) are all up to you. Here are 10 of the best oversized \ boyfriend coats I've recently found - all for under $170.