After a long winter spent fishing midges on your favorite trout stream, it's nice to switch things up with a little stillwater action once peak runoff hits—just remember to bring a spool of Airflo's Velocity Sinking Fly Line so you're able to put your fly down to where the fish are actually feeding. Its weight-forward taper makes it easier to cast than those old-school sinking lines, and the full intermediate sinking design drops about an inch per second, giving fish plenty of time to eat your fly.