best travel backpack that fits under airplane seat Boardingblue Under-Seat for Spirit, Frontier - 18 x 13 x 8 Inches - Perfect Personal Item for Easy Air 18 x 14 x 8 Over Underseat Luggage Best Travel Backpack

Our parent tester commented, I love that the chest clip keeps the shoulder straps in place on narrower bodies

SQUIRREL_13085565 Evoc Commute Pro 22 SQUIRREL_TEXT_13085566 225 / $280 / 260 as tested 22L Pros : Secure fit for all body shapes

Rains Long Jacket, $125 Shop all Rains rain jackets What stands out most about the Rains jacket is the minimal, Scandinavian design the jacket itself is low-frills but you'll find thoughtful details like pocket closures to ensure nothing inside gets wet, wrist snaps for adjustability, a smooth and malleable rubberized finish, and a cute visor on the drawstring hood for good measure

In my example two ice packs kept everything cool, but I'd recommend surrounding contents with ice packs and also filling space with loose ice