Underseaters

The underseater is the most compact format in the lineup. It slides beneath the seat in front of you and keeps your personal items within reach the whole flight. It's the format for a same-day trip, and it also matches the personal item allowance offered by many airlines.

They're sized for the space beneath the seat, which is tighter than the overhead bin. Each airline sets its own personal item allowance. Check the permitted dimensions on your ticket, then compare them to the product page, wheels and handles included.

Not always — this is worth checking every time. Each airline sets its own personal item allowance, and budget carriers in particular apply stricter limits. Confirm the allowance on your ticket before you rely on it.

Depending on the model, yes. Organizer pockets, an interior divider and spinner wheels help you make the most of a compact space. It suits a same-day business trip, a quick getaway, or as a personal item alongside a larger checked bag.

Depending on the model, it features dual multidirectional spinner wheels for easy handling and a TSA-accepted lock for security. Check the product page for the exact features of each model.