I don't understand why people think removable sleeves is a dumb idea. From my experience, it is a necessity on a jacket, definitely one of the best features you could possibly have on a jacket. So convenient when it is freezing in the morning and gets up near 40 in the afternoon. Plus vests are much more practical than just wearing a hoodie, your ass doesn't get wet and you don't get covered in snow when you fall. It is also still windproof.