IdealTech Lightweight Packable Backpack Color:Violet This Fieldbrook Xlt 3-piece set

This Fieldbrook Xlt 3-piece set includes a boarding bag

The flat design makes it ideal for everyday use or as a travel bag for carrying essential items

The Travel Gateway 4-Wheeled Luggage is a lightweight carry-on size

Regarding ergonomics

IdealTech Lightweight Packable Backpack Color:Violet This Fieldbrook Xlt 3-piece setCOMPACT: This IdealTech backpack has an innovative design and folds into a small zipped inner pocket, and unfolds to a full sized backpack in seconds. A true space saver and a must have for every trip or daily activities. You may simply fold the backpack into its own compact pocket for storage to avoid excess baggage fees in travel, then unfold it at the destination. To avoid overweight charge, simply unfold from checked bags and use it as a carry on