Inspired by our original Aeronaut, the Techonaut — two sizes: 45L (you are here) or 30L — is our largest airline carry-on backpack that combines style with ultimate functionality. Features include: 

·Three carry methods: backpack, shoulder bag, and duffel

·Skeleton back panel for improved airflow

·Top-loading, suspended laptop compartment with exterior access, fits 17” laptops and more

·1 spacious main compartment, 1 large end pocket, and 3 quick-access exterior pockets

·6 O-rings for optional organizational bags and accessories

·Breathable, supportive back panel for long comfortable as a backpack

·Comfortable, durable, edgeless backpack straps that can be tucked away when needed

·Rolling luggage handle pass-through pocket

·Maximum carry-on size for most U.S. domestic airlines