Details magazine is turning the ocean into your gym. The gear to get includes the Finis Snorkel and the Finis Swimsense. The super-stiff Finis snorkel doesn’t jut to the side but extends straight up from your mouth, so there’s no annoying drag. You;ll be able to focus on your stroke technique instead of worrying that your next sideways breath is a gulp of salt. The Swimsense is prefect for the open water to track your stroke counts, distance per stroke and calories burned.