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Travel bags, laptop bags, and backpacks. Tom Bihn has been designing and making bags since 1972. The best materials and innovative construction.

Packing Cube Backpack (Aeronaut 45) - Tom Bihn 13

The Packing Cube Backpack (Aeronaut 45) is a dual-purpose packing cube: in preparation for and during your journey, use it to organize and pack your clothing inside the Aeronaut 45 — just like how you'd use our Large Aeronaut 45 Packing Cube. When you reach your destination and it's time to leave the Aeronaut 45 in the hotel or hostel, you can remove the contents of the Packing Cube Backpack and right-side it out, transforming it into a backpack with two compartments, an O-ring, and webbing backpack straps that are surprisingly comfortable for lighter loads. Pack a light jacket, wallet, lunch, water bottle, and map: you're ready to go out and explore, and you've saved space by not having to bring a separate backpack for day use.

Tom on designing the Packing Cube Backpack
"I designed the Packing Cube Backpack as a result of customer requests from our forums; in fact, I think it's the first product we've made that was 100% inspired by customer feedback. Many of the details, of course, reflect my design experience, and my sewing crew helped to refine some of the subtleties of the construction. Overall, it was truly a group effort.

We took the prototype on our trip to Alaska and we used it every day: for grocery shopping, for organizing the trunk of the car, even for a day hike in Denali National Park. It's lightweight (only 9.2 oz / 260 grams), packs down to almost nothing, and yet, because of the Dyneema®/nylon ripstop fabric, tough as nails." —Tom

Made out of our custom-dyed Japanese 200 denier Dyneema®/nylon ultralight ripstop fabric, the Packing Cube Backpack is very lightweight yet tough enough for a lifetime of use for most folks.

Dimensions (as a backpack):
17.5" x 13.5" x 4.25" / 445 x 345 x 105 mm
Dimensions (as a packing cube):
13.5" x 13.5" x 4.25" / 345 x 345 x 105 mm

Volume (as a backpack):
16 liters (975 cubic inches)

Other varieties of Packing Cubes are also available:
Packing Cubes (for the Aeronaut, Tri-Star, and Western Flyer)
Packing Cube Shoulder Bag
Packing Cube Backpack (Tri-Star/Western Flyer)
Clear Quarter Packing Cube

Those who appreciate our lightweight Japanese Dyneema®/nylon ripstop fabric travel accessories may also find these bags useful:
Shop Bag
RFID Blocking Passport Pouch
Travel Stuff Sacks


200 denier Dyneema®/nylon ripstop
#5 YKK coil zipper
High quality U.S. webbing backpack straps


Made in USA
100% finished seams


Dimensions (as a backpack): 17.5" x 13.5" x 4.25" / 445 x 345 x 105 mm
Dimensions (as a packing cube): 13.5" x 13.5" x 4.25" / 345 x 345 x 105 mm
Volume (as a backpack): 975 cubic inches / 16 liters (ASTM Standard Measure)
Weight: 9 oz / 270 grams

Videos and Customer Photos

Watch more videos on our YouTube channel.

View customer photos on Flickr.

Packing Cube Backpack (Aeronaut 45)

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Always Made in U.S.A.

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Aeronaut 45
Aeronaut 45: $280.00
Packing Cube Shoulder Bag
Packing Cube Shoulder Bag: $32.00
Packing Cube Backpack (Tri-Star/Western Flyer)
Packing Cube Backpack (Tri-Star/Western Flyer): $50.00
Packing Cubes
Packing Cubes: $19.00 - $22.00
Travel Money Belt
Travel Money Belt: $25.00