Transitional jackets are one of my favorite categories of menswear. These mid- and lightweight pieces are a terrific way to add variety to your layering without the bulk of most winter jackets. Not to mention the need for pieces like this signal the happy end of a ridiculously cold and sloppy winter. Below are a few of my favorite options in a variety of style that will take the edge off those chilly mornings and nights but won't weigh you down during the day.A.P.C. cotton peacoat ($430). This classic style typically found in wool feels very fresh in lightweight cotton..F.M. Allen Avedon Coat ($498). This sportcoat-inspired style is great for someone on the traditional side who wants to infuse some ruggedness into his look. Best of all, this puppy is machine washable. Filson Mackinaw Cruiser ($280). The shacket (shirt-jacket hybrid) is a versatile piece you can wear over a single item in Spring or do some serious layering with in the cooler months. You get a lot of bang for your buck out of a piece like this..All-Son Military Jacket ($68). After season upon season of shoulder buttons and tabs, I've pretty much reached my breaking point with the military trend. But I do like this subtle rendition from All-Son for Urban Outfitters. I'm not even sure why they call it "military" -- maybe it's the chest pockets? Names aside, it's a little less in-your-face than the standard military look without those excessive shoulder details. Nice style at a good price. 'Nuff said.