Usually when I wear blazers, I have something light on underneath. But come winter – when I really need to layer up – I have a few wool blazers that fit perfectly over sweaters. No special trick here, I just bought them in a larger size. But it did help to wear a sweater while I was shopping for the winter blazers. I just wanted to be on the safe side – Chris Farley’s man-down-by-the-river is not a look that I want to be seen in!