The Adjustable Backpack B3 by Piorama - Piorama in Malaysia - Storming Gravity
The Adjustable Backpack B3 by Piorama - Piorama in Malaysia - Storming Gravity
The Adjustable Backpack B3 by Piorama - Piorama in Malaysia - Storming Gravity


The Adjustable Backpack B3 by Piorama

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The Adjustable Backpack B3 is a small, medium and large backpack all in one. Using the same adjusting mechanism as our classic A10, B3 has the ability to transition between 31L, 46.5L, and a 62L capacities, making it the only backpack you need. There is no other backpack in the world with this size versatility.

Focusing on being a great overall backpack, B3 is equipped with great features such as being water resistant, durable, having a removable waist belt and side compression straps. Following Piorama's design integrity, B3 redefines simplicity and functionality.

Capacity - 25L (side straps compressed), 31L, 46.6L, 62L
Water-resistant (against short periods of light rain and splashing water)
2 exterior zip pockets, 2 interior zip pockets
Laptop compartment (Fits up to 15.3")
Safety side pocket
Quick access front strap zip pocket
Lockable main compartment zipper
Removable hip belt
Padded shoulder straps with sternum strap

Small / 31x31x41cm
Medium / 31x31x61.5 cm
Large / 31x31x82 cm
1.35kg, 2.9lbs (w/ additional 300g, 10.5oz removable hip belt)

900D nylon with PU coating
210D polyester lining
Extremely light and durable Duraflex ABS hardware
Waterproof SBS zippers

The Adjustable Backpack

Say hello to The Adjustable Backpack! The first real multi-size backpack in the world as it can double in size.

The Adjustable Backpack is a small, medium and large backpack all in one. With the ability to transform into three completely different sizes, it's the only backpack you need.

The World First Multi-size Backpack Ever

Adjust Instantly

The Adjustable Backpack is extremely easy to use. It expands or contracts through a patent pending cinch design. There's no other bag in the world that can expand so much (double's in size) - so quickly.

The Adjustable Backpack can transition between: Small: 31L / 31x31x41cm / 12.2x12.2.x16.15"  Medium: 46.5L / 31x31x61.5cm / 12.2x12.2x24.2" Large: 62L / 31x31x82cm / 12.2x12.2x32.3"

With The Adjustable Backpack you'll never need another backpack ever again. It's size versatility allows it adjust to fit your different occasions.


It's perfect for every day use and commuting. It is simple, elegant, and modern.



The Adjustable Backpack is also perfect for weekend trips, recreational adventures, and excursions. It's durable micro-ribbed 900D nylon will always keep your things safe and dry.



It's also perfect for longer travels, thanks to its 62L capacity when fully expanded.



When designing The Adjustable Backpack we took great care to design every detail of the bag so that it is simple yet extremely functional. The design looks minimal and sleek, works extremely well, and is made to last.