As any public-school student could tell you this week, spring break is a glorious and fleeting thing. Which means you shouldn’t be wasting time at the airport luggage carousel waiting for your checked-in bag to show up. Hideo Wakamatsu’s slick nineteen-inch Tarpaulin carry-on ($190 at Flight 001, 96 Greenwich Ave., nr. 12th St.; 212-989-0001) smartly combines the maneuverability of a rolling suitcase with the moldability of a duffel. The water-resistant tarp shell is lighter than metal-frame models and can be compressed for squeezing into an overhead bin or expanded to make room for any items you acquire en route.