Review: tentree Mobius Backpack [Staff Tested]

LeafScore is reader-supported. We may earn an affiliate commission. Learn more.

Written by Leigh Matthews, BA Hons, H.Dip. NT


Leigh Matthews, BA Hons, H.Dip. NT

Sustainability Expert

Leigh Matthews is a sustainability expert and long time vegan. Her work on solar policy has been published in Canada's National Observer.


I loved the tentree Mobius 35-liter backpack at first sight. It’s so smartly designed and has such a clean profile that it works for everything without ever feeling like too much or too little backpack. The only downside was that I’d promised to give it to my wife.

tentree Mobius 35-Liter Backpack with REPREVE

Leaf Score

Highlights: Waterproof and PFC-free, this fantastic rolltop backpack is made entirely from post-consumer recycled polyester, for shell, lining, and insulation! It has a smart layout to help you organize your stuff, a clever chest strap design you can easily adjust to fit your frame, and is BlueSign and GRS certified and made by a B Corp that cares.

What we like

  • Made from recycled materials
  • Functional, and easy to use
  • Smart chest strap design is a game changer
  • Waterproof without PFCs

What could be better

  • Only comes in black

The tentree Mobius rolltop 35-liter backpack is smart, sustainable, and understated. It comes in one color, a true black, and is made entirely of Repreve polyester for the outer shell, inner lining, and insulation. The trims are also made of recycled materials.

The Mobius also carries Global Recycling Standard (GRS) certification, so you know tentree isn’t all hot air. This backpack is also BlueSign certified, meaning it is made in a way that helps protect the environment and conserves water. tentree designs its products in Canada and manufactures them ethically in Vietnam. The company is a B Corp and plants ten trees for every product sold.

A super smart design perfect for everything!

The Mobius has one large exterior zippered front pocket with another zippered pocket inside for convenient storage of your wallet and keys, notebook, and other essentials. There is also a second zippered pocket above this which is lined with a lovely smooth cork, adding a little luxury to the otherwise understated design. On the side, you’ll find a third zippered pocket on an angle, ideal for stowing cables and other items that can get lost in a large main pocket. There’s also a side pocket for a water bottle.

As for that main pocket, I love that the tentree Mobius has a dual-access design whereby you can unzip the main pocket from the back of the bag (around the padded back panel). This saves you from having to unroll the bag from the top. Inside the main pocket, there’s a handy laptop sleeve with a clip for safety. This can double as a pocket for a hydration pack, with a well-positioned aperture for water reservoirs.

The clever design includes adjustable drawcords, straps, and belts, with plenty of subtle elastics and tags for you to attach carabiners and such. The smart chest strap design, for instance, can be unclipped on both sides and moved up or down. As a shorter person with a smaller frame, I love this feature – no more irritating poorly positioned straps! And, because it unclips on both sides, you can remove the strap entirely instead of just having it dangling annoyingly.

The Mobius backpack is also a great choice for overnight hikes and camping, and even for yoga trips in the city. That’s because it features built-in straps at the base for you to wrap around a camping mat, tent, or yoga mat as needed.

The backpack can accommodate a 15-inch laptop, which makes it a much better fit for many commuters (most backpacks only fit smaller 12- or 13-inch laptops and barely squeeze in a Macbook). The laptop pocket is padded with ALGIX Bloom foam made partially from algae, rather than pure polyurethane.

Our experience with the tentree Mobius 35-liter backpack

I got this backpack for my wife, to replace her incredibly old, falling apart, held together with duct tape and safety pins backpack she’d had since school and which had long since lost any waterproofing. She’s already settled into the new backpack and discovered features I didn’t notice, including that easy access back zipper situation.

As an audio and print journalist with a lot of random bits of tech to tote around, this backpack is fantastic for her. It’s waterproof without PFCs, has pockets for absolutely everything, but looks so unassuming that it’s not going to make her stand out unless she wants to. That said, it’s a very stylish workhorse of a backpack. I’m even considering getting one for myself!

Testing it out on an incredibly rainy day in the Pacific Northwest, my wife reports that the tentree Mobius held up really well, keeping all that precious equipment dry and safe despite the downpours. It was also comfortable, spacious, easy to use, and made her look, dare I say, considerably more professional than that ratty old backpack that was literally falling apart at the seams.

Final thoughts on the tentree Mobius 35-Liter Backpack

All in all, the tentree Mobius is a great choice of sustainable backpack for just about any setting. It will work really well for older kids and adults in school, is smart and practical for work, is light and functional for trips into the city and day hikes, and can even work as an overnight bag and for camping.

Free eBook: Simple Steps to a Greener Home

Concerned about climate change? Learn actionable tips for making each room in your home greener.

"*" indicates required fields

This field is for validation purposes and should be left unchanged.

Leave a Reply

If you have a question about the subject matter of this post, ask it in the comments below. To better serve our readers, we have started answering some reader questions in dedicated blog posts.

Back to top