Packing List Essentials

Liz Plosser, SELF magazine

Listen, we know it's the holidays. And even though we let ourselves indulge, we'd like to not end up as a statistic--or rather, one of the 29% of people who gain weight on a vacation. But before you leave, pack your carry-on with these stay-slim essentials.

Super lightweight fold-up running shoes, like Adidas Adipure Gazelle ($100), take up almost zero space and make it easy to burn calories whenever, wherever.

See more: 20 Superfoods for Weight Loss

: It's the equivalent of stuffing a tiny cardio machine into your bag, says Adam Schersten, a trainer at Equinox in New York City. No kidding: It burns 11 calories per minute.

See more: Yoga Moves for Flat Abs

: "When you're cold, your body craves calorie-laden comfort foods," says Victoria Shanta Retelny, R.D., of Chicago. Stay cozy and nix cravings on chilly plane rides with the White + Warren Cashmere Travel Wrap ($295).

: We tend to thirst for hunger. Low-cal Nuun tabs make plain water exciting, so you stay hydrated.

See more: Foods That Fight Belly Bloat

SNACKS: Plane food--when you get fed at all--is usually pretty nasty and not so healthy. Instead, stash some nuts, snack bars (200 calories or fewer, like Luna bars) and fruit (apples are hard to squash) in your bag to nibble on when the munchies strike.

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