Introducing the ultimate roll-top dry backpack for your next adventure.

Built with heavy duty ballistic nylon, designed to be durable and protect your stuff during your daily activities in any weather conditions.

The combination of this fabric with TPU coating make the backpack impenetrable to water and guarantee extreme longevity, lightness of weight, flexibility and abrasion resistance, even after hard use.

ATTENTION: The crowdfunding campaign on this website is currently over.
You can order one of the few units left in stock.


$270,255.00raised of $50,000.00 goal

541% funded

ATTENTION: The crowdfunding campaign is currently over. You can order one of the few units left in stock.

Calculating time Order now

  • Material: 840D Ballistic Nylon with double TPU coating
  • No PVC used
  • Dimensions (rolled down): 18" H x 12" W x 8" D (45cm x 30 cm x 21cm)
  • Capacity: 25 L
  • Weight: 600g
  • 3 locking systems for maximum protection against water (easy, roll-top, sealed)
  • Breathable back panel
  • Adjustable, padded shoulder straps with sternum strap
  • Exterior zippered pockets
  • We ship worldwide. Shipping cost: $7.95 Free shipping for orders over $100

  • Expected pre-orders delivery: Early August 2022

Customer Reviews

Based on 39 reviews
Jarek M.
Quality on point

Ordered this backpack a while ago. Bit sceptical at first as they seem like a small company but I was pleasantly surprised by the quality of the bag. The material is thick and durable and it’s held up to many fishing/camping trips. I’ve used it to carry clothes, gear, even fish and it’s still goin strong

Stefan O.
Excellent backpack

I have been using the backpack for several months now, in extreme conditions (rain, humid weather, dry, sunny days in Europe and in tropical Latin America) and it works very well. I am loving it. I wish it had more pockets inside to organize my stuff. Apart from that, it's ideal.

Waterproof backpack

Excellent quality for all outdoor purposes

Jamieson B.
I love this backpack so much, I'm about to buy another!

As anyone who spends any amount of time backpacking, canoeing, kayaking, snowboarding etc. knows, bad weather can turn an exciting adventure into an annoying endeavour, but being properly prepared ensures that the former is more likely. My Project 46-012 Waterproof Backpack is now my permanent companion on all of my adventures. As soon as it arrived, I immediately saw how well made it was and just as immediately realized that I should have purchased one for my partner as well. Righting the wrongs of the past, I'm off to purchase another backpack!

Dom L.

Awesome piece of kit


Image Product

100% Waterproof
Built with the best water repellent materials to protect your stuff in every weather condition. 

TPU coated on both sides, it can also be submerged.

It has 3 closing modes: easy, roll-top and sealed, to ensure maximum protection for your gear. 

We are committed to offer high performance with sustainable materials.
We do not use PVC..

TPU is environmentally friendly and non-toxic, could be decomposed by microorganism within 3-5 years when buried.

We use 840D high-tenacity ballistic nylon. It is durable, resistant and safe in any situation, even the most extreme. Ballistic nylon was developed as a material for flak jackets to be worn by World War II airmen.

Excellent low temperature flexibility, could be doubled up under -55ºC without causing cracks.

Outstanding hydrolysis resistance ,abrasion resistance, oil resistance and ageing resistance.

Most outdoor equipment is functional but ugly. We want to create products with the great design you can use in any daily activity.


Our goal with Expedition / Units is to offer high performance and durable products through sustainable materials.

The idea of this brand was born in Bali, a place that is made to stimulate adventure, the pleasure of discovery.

This is for all the adventurers, explorers, travelers and digital nomads. If you see life as daily growth and discovery, help us build the community and fund this project.

We have many ideas for new products to launch. We want you to be part of this process.

As a brand we also want to launch initiatives to leave a mark on the world, make it a better place, sustainable and free from plastic.