Poly Bag


  • Waxed cotton canvas
  • 100% Vegan
  • Recycled cotton handloom inside lining
  • Inside laptop pocket
  • Cross over shoulder straps
  • Carry handles
  • Double zipped
  • Outside approx. 28 cm (w) x 35 cm (h) x 16 cm (d)
  • Approx capacity 15 litres


Poly Bag Backpack

Poly bag is the result of 4 years of design, taking the core concepts of C+S theory into best practice. The exterior features a large external pocket, zipped to the front. Shoulder straps (as all backpacks do) as well as 2 carry handles that tuck away when not in use.

Inside is where the magic happens. Organised into 2 sides, that open fully, or more conventionally – with laptop, document and secure zipped pocket. Outside Poly is constructed from laminated waxed (rainproof) cotton canvas – whilst inside is trimmed with handwoven recycled cotton. All hardware is metal, including all zips and buckles.

A backpack that looks this good, and helps organise you this well is hard to find. Ideal as a daily driver, or as a travel companion it’s the perfect size and shape for everyday.

Dimensions 28 × 35 × 16 cm

It's Aqua, It's Black, It's Blue, It's Green, It's Grey Blue, It's Khaki, It's Orange, It's Pink, It's Yellow


18 litres


1100 grams

Poly Bag Vegan Backpack

Poly Bag Vegan Backpack. All new waxed canvas and recycled cotton handloom lining, with solid black metal hardware.

The brilliance of simple.

Take anywhere backpack that packs a bunch. Inside is as important as outside. Multiple document and laptop storage compartments. All in all an excellent backpack.

Designed with comfort in mind.

Created simply. The inside features multiple pockets and compartments to organise everything. Much larger than you think. We've stress tested Poly to destruction, including once as the only luggage for 2 people for a long weekend in France. The stress I can tell you was immense. There's also a unique handle design that allows you to grab and go.

Frequently asked questions.

The outside canvas has a unique water repellant treatment that makes the canvas rain proof. The natural and vegan process the canvas undertakes is ideal for all normal weather and conditions, it can also be further treated with Cora + Spink wax finishes. Over time the canvas will need to be topped up if you're outdoors lots. Please get in touch if you need more information.
We accept returns within 30 days where the product has not been used and is returned to us in the same condition (so we can sell it) as it arrived. This includes all straps, buckles, packaging, labels and other supplemental items included in the original sale. Please contact us directly to authorise and obtain a returns address. Full refund/returns policy is available here.
All C + S products are made by hand using natural materials. They are strong and robust, but do require care and attention to ensure they have a long and fulfilling life. We recommend removing mud and stains with a stiff brush, you can then use a damp cloth to gently remove any unwanted marks. Due to the nature of the material finish, you may encounter fading of the canvas - this is to be expected. Don't use harsh chemicals, and do not wash in a washing machine. Specialist cleaners can help - if you have a particularly difficult stain please contact us directly, and we will do our best to advise.
Short answer, absolutely yes. No animal products or by products are used in the production of the backpacks, this includes but is not limited to the glues and treatments, the inks, dyes and the waxes... the working environment where all the backpacks are made is exclusively used only for Core + Spink products, meaning we control all elements of production.

What others are saying.

It's a stylish design and big enough for my laptop, books and other bits and bobs. Delivery was quick and the customer service was great too. Thanks!


via Google.

Excellent bags and fantastic customer service. Would highly recommend.


via Google.

A micro wardrobe all equipped answering exactly single one of my daily need. Need a pocket... got 10 of them.You can lay it flat like a luggage and fill it of treasures ! I have It in green... goes with my eyes! Happy purchase!


via Email.

Found Cora + Spink through a friend who owns a shop in Bath - waited a few weeks for the Aqua Green to come back into stock, but have been obsessed ever since. Reading the reviews I think they are right that this really is the perfect company and bag. Every pocket, every stitch feels good. And it's still vegan! What's not to love.


via Messenger.

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Travel with Cora + Spink.

We found doughnuts. Day out with @matoutea being tourists in #oxford - watching the new students arrive, dodging bikes and sitting on the top of the bus. #dayout #vyn #food #backpack
Dragging @tales_from_the_moustache away from the #bullring to prance about up the middle of the street with a Poly Bag. All in a day's work. "Should" be some left in store and online... #backpack #dave #leamington #regency #architecture #photography
So we found ourselves on a boat on the River Avon having a BBQ in a thunder storm outside the #royalshakespearcompany #rsc #stratford #boating #thunder
When you experience nearly every season in a week... From Ireland, France, Cornwall to Wales... #backpack #travel #rain #sun #hail
Just received first samples of our new Its Navy canvas complete with a new finish applied. Different colours and different batches of canvas during the year have quite different or varying "handles", we love this change as it reflects the true nature of a natural material. But this doesn't stop us from fiddling. Here we were experimenting with a stiffener that we can apply to give the canvas a slightly different feel, unfortunately it appears the effect has affected the waterproofing... These at home tests are great for seeing immediately how the canvas may perform... #test #canvas #byhand #waterproof #backpack #waxed
When a "let's pop to Bristol" happens and you find the covered markets. Frankie #1 - a versatile fella. #market #model #photoshoot
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