Go with a 22-inch-tall wheeled suitcase with a retractable handle. That is typically the largest bag allowed as a carry-on, so you’ll make it safely through security checkpoints. The following models can accommodate four days' worth of outfits, plus two pairs of shoes.

Tumi, $395

With its removable fold-out "suiter" (essentially a no-frills garment bag) and its wrinkle-defying tie-down straps, this sleek piece of luggage is perfect for the frequent business traveler. What's more, the pleated front pocket can be stuffed with in-flight reading material (or dirty clothes). The bag comes with a stow-away cover that keeps the exterior spotless during storage and offers protection on the rough-and-tumble ride to your destination (what goes on beyond the conveyor belt, anyway?). And Tumi has a program that helps return your luggage to you if it gets lost.

Size: 22 by 14 by 11 inches.
To buy: This product has been discontinued. To see similar items, visit www.tumi.com.