Are rolling totes allowed as a personal item on planes?

Many compact rolling totes (roughly 14 inches and under) are designed to slide under an airline seat and count as a personal item, but the rigid frame and wheels mean some squeezable backpacks fit more easily. Reviewers across r/onebag and travel forums repeatedly note that the Travelpro Maxlite 5 underseat tote fits most domestic carriers, while larger 22-inch rolling duffels are generally carry-on or checked, not personal items. Always cross-check the bag's external dimensions against your specific airline's personal-item limit.