Cornstarch Poop Bags
3 products
FAQs
Monty’s Bags break down fully in 3–6 months, unlike plastic bags which can take hundreds of years (or never) to decompose. A simple switch that makes a big environmental impact.
Our bags are made from cornstarch and bio-based plant materials (PLA + PBAT) and come in our signature creamy yellow colour—not the typical “green compostable bag.” They’re strong, leak-resistant, and larger (9 × 13") than many standard bags.
Yes! Thick, tough, and reliable. Designed to handle all breeds—from small pups to big dogs—without rips or leaks.
Yes. We even offer Triples Rolls (45 bags per roll) for fewer roll changes and better value—perfect for multi-poopers, multi-dog homes, and busy dog walkers.
Absolutely. We support dog walkers, pet boutiques, groomers, commercial properties, condos, and municipalities with wholesale and bulk order options. Contact us to learn more.
Let customers speak for us
Best Poop Bags
These bags are strong and easy to open!
Susan Miller
Compostable Dog Poop Bag Refill Rolls - 9 x 13" Bag Size
Excellent quality
Bags are great! Good quality, don't rip or have holes. Love buying from a Canadian business with an excellent product.
SL
Compostable Dog Poop Bag Refill Rolls - 9 x 13" Bag Size
Super génial!
J'adore ces sacs écologiques que nous propose Monty's bags. Ils ont une belle épaisseur, une grandeur parfaite pour récolter et sont compostables! Que demander de mieux!!! 🤩😍
Marie-Eve Parent Grenier
Bulk Compostable Dog Poop Bag Refill Rolls - 9 x 13" Bag Size
J'adore vos produits!
Je suis littéralement en amour avec ces produits de qualités, écologiques et magnifiques!!! Je recommande à 100%!
J'ai même eu la chance d'avoir un petit cadeau que j'apprécie beaucoup!🤩😍
Marie-Eve Parent Grenier
Yorkie Mom Vinyl Sticker
Excellent product and service
As a multi-pooper owner I go through a lot of bags over a year, and these do the job well, aren't plastic and available in bulk. All good things.
Tom R
Compostable Dog Poop Bag Refill Rolls - 9 x 13" Bag Size
Great Bags
Good quality bags that are quite thick and don't tear. Nice to know we're not throwing out plastic anymore. Personalized note was a very nice touch and we're supporting a Canadian company.
Joe S
Compostable Dog Poop Bag Refill Rolls - 9 x 13" Bag Size
Great
Reordered twice now. Quick local delivery. Great bags!
Kathleen Les
Bulk Compostable Dog Poop Bag Refill Rolls - 9 x 13" Bag Size
Thank you!
I love that your bags are compostable!
Beatrix Nord-Leth
Bulk Compostable Dog Poop Bag Refill Rolls - 9 x 13" Bag Size
Highly recommended
We changed from Earths Own compostable bags as these were cheaper (especially with the BOGO offer) and from a local BC seller. The triple packs and dispenser are great as have to replace less often and easy to load. Only downside is the bags are slightly harder to open but this is very minor issue for a compostable bag. Will continue to use, thank you!
Will Shippam
Bulk Compostable Dog Poop Bag Refill Rolls - 9 x 13" Bag Size
Great product!
I have a 55 lb Shepsky and these bags work great! Very happy with the size and the service: when we received our first shipment, it included some fun extras, much appreciated! Also enjoyed the colourful tape outside the box. ;)
Mova Scotia
Bulk Compostable Dog Poop Bag Refill Rolls - 9 x 13" Bag Size
Best bags
This is the second order and I love the bags, especially the 45 roll ones. I also love that they are environmentally friendly.
Monty’s also love your customer service is top notch.
John Kavanagh
Bulk Compostable Dog Poop Bag Refill Rolls - 9 x 13" Bag Size
The best poo-bags ever!
These are the best poo-bags. Not one bit of plastic in them. I love the colour. I'm so sick of green bags claiming to be friendly for the environment. Go Cornstarch Go! I've handed these out to friends to convert them to Monty's.
Pepper
Bulk Compostable Dog Poop Bag Refill Rolls - 9 x 13" Bag Size
Perfect Size and Durability
These are our new favourites. Great size, very durable and even better that they are compostable.
JT
Bulk Compostable Dog Poop Bag Refill Rolls - 9 x 13" Bag Size
Everyday Favourite!
Our sweet girl absolutely loves this mat — it gets used almost every day. The honeycomb sections are great for berries or chopped veggies. We have just purchased a second one to alternate throughout the week!
JT
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