Here's the choice you used to face when packing: Take the fins you'd actually like to dive with all week, or the ones that will fit inside your suitcase. These days, you no longer need to choose between convenience and comfort or performance. Case in point: the compact but surprisingly peppy Scubapro Go. While it looks like a traditional open-heel fin designed for use with dive boots, the Go is made for barefoot use, and the supple foot pocket and soft, padded bungee strap provide a very comfortable, stable fit that lets you kick hard with little fatigue. Just 20½ inches long and 1¼ pounds each in size medium/large, the Go has a wide, steeply angled blade with supporting ribs along the sides that give it the drive and power of a much bigger fin. The hole and small clip at the fin tip let you fasten a pair together for easy carrying.