We won't say that down vests are "on trend" this season, as it's hard to find a better piece of outerwear for this time of year. But the lightweight puffers did find their way into a handful of fall collections—from Michael Bastian to Band of Outsiders. We recently tried Gap's latest version and were pleasantly surprised. The armholes are high and the sides are tapered, ensuring a streamlined fit and the 90% down filling is remarkably lightweight yet warm. Lands' End has always been a good source for quality, affordable options but if you've got the cash, we'd suggest Filson's ultra soft wool option or J.Crew's recent collaboration with Seattle's Crescent Down Works.