Grab the Orvis insulated Drift Vest for men when the weather could change on you, but you don’t think you’ll need a full-on coat or even sleeves, for that matter. The soft Thermore® Genius loose-fill insulation (made from 100% recycled PET bottles) gives this vest a crazy warmth-to-weight ratio, so you won’t feel like you’re carrying around one more ounce of gear than you need to.