Introducing our eco-friendly, biodegradable, and compostable dog poop bags! Monty's Cornstarch Poop Bags are a sustainable alternative to conventional plastic pet waste bags. Crafted from cornstarch and renewable bio-based plant materials (PLA and PBAT), these bags fully biodegrade when returned to the Earth, leaving no harmful toxins or waste behind.
While traditional plastic poop bags can take hundreds of years to decompose, our compostable cornstarch bags break down in just 3-6 months, making them an essential eco-friendly swap.
While our compostable pet waste bags are BPI certified compostable, it does not mean that your municipality waste collection service will accept pet waste as part of their home compost waste collection or commercial composting facilities.
For responsible pet waste disposal in your area, please search where you live along with pet waste disposal and you should see whether or not pet waste can be collected or commercially composted in your area.
To help limit the amount of pet waste ending up in the landfill some other eco-friendly options are flushing the pet waste (never in any bag - it will clog!) down the toilet, using a designated pet waste disposal service (Google search where you live and see if there are services offered in your area). You can even create your own at home designated dog waste composter!
Our dog poop bags are designed to offer a more eco-friendly and plastic free alternative to conventional plastic poop bags so even if you dispose of your dog poop in a garbage can at home or while out and about you can rest easy knowing that the bag will fully break down in a matter of months at a landfill leaving zero waste behind.
Canada: Shipping is a flat rate fee of $9.99. Free standard shipping on orders $75+ CAD. Orders ship with the best available carrier.
United States: Shipping is a flat rate fee of $9.99 USD and free on orders $75+. All orders ship DDP — duties, taxes & import tariffs included at checkout. No extra fees on delivery.
International: Shipping rates are auto-calculated at checkout. Select a tracked service if you want tracking updates. Customs delays are possible.
Processing: Orders ship within 1–3 business days from BC. Delivery times are estimates and delays once shipped are outside our control.
Customs (US + International): Customers are responsible for any customs fees on international-bound orders. Refunds cannot be issued for refused packages returned due to unpaid fees or tariffs.
To learn more about our full shipping policy, please click here
FOR USE IN CANADA ONLY Monty’s Bags are made from cornstarch, PLA and PBAT and are certified for commercial composting in Canada. Under appropriate commercial composting conditions, they are designed to break down within approximately 3 to 6 months.
They are not suitable for home composting, and acceptance of compostable bags and pet waste varies by municipality. Always check your local disposal requirements. If an appropriate commercial composting program is unavailable - or your municipality does not accept pet waste - please place used bags in your regular garbage or black bin, where applicable.
We believe one size and format doesn’t fit every poop. Monty’s Bags are available in multiple sizes, colours and formats including 9 × 13" Large Bags, 8 × 10" Small Bags, 8 × 13" Tear-and-Go Bags and 7 × 13" Easy-Tie Handled Bags.
Our collection includes our signature creamy yellow rolls, bright blue Small Bags, lavender scented purple bags and convenient handled and commercial options. They’re strong, leak and tear resistant, with practical details such as easy-peel roll stickers and plastic-free packaging.
From small puppies to larger dogs, everyday walks to shared cleanup stations there’s a Monty’s Bag designed for the job.
Monty’s Bags are crafted from bio-based materials including:
Together, they create a durable bag that’s gentle on the planet while still being strong enough for everyday use.
Under appropriate commercial composting conditions, Monty’s Bags are designed to break down within approximately 3 to 6 months. This timeframe does not apply in landfills, regular garbage or home composting systems.
Commercial composting facilities and pet-waste acceptance vary by municipality, so always check your local disposal requirements.
Yes! Our bags are designed with durability in mind. They’re thick, sturdy, and reliably leak-resistant, making them ideal for all breeds — from small pups to large dogs.
Our Large Bags measure 9 × 13", providing plenty of room for dogs of all breeds and sizes, messier cleanups and easy tying. Our Small Bags measure 8 × 10" and are designed for smaller breeds, puppies and smaller pickups.
Both our Large and Small Bag rolls fit most standard poop bag dispensers.
Absolutely! For multi-dog households, frequent walkers, or anyone who simply goes through more bags, our larger boxes make stocking up easy.
Our 32-roll box includes 480 bags, while our 64-roll box includes 960 bags, so you can spend less time restocking and always have plenty on hand. They’re a great option for busy pet parents, dog walkers, and anyone looking for better value in a larger quantity.
Yes — Monty’s Bags offers wholesale options for but not limited to:
We also support bulk procurement for condos, parks, dog stations, and businesses seeking sustainable waste solutions.
Contact us for more information
Our compostable bags are BPI Certified Compostable (Canada only) and meet OK Compost and TÜV Austria standards, ensuring they break down properly in composting environments.
Acceptance varies by municipality, so always check your local disposal guidelines before placing used bags in an organics or green bin.
Some Canadian programs accept pet waste in certified compostable bags. For example, the City of Calgary accepts bagged pet waste in its Green Cart program and lists Monty’s Bags as an acceptable certified brand. calgary.ca
Where an appropriate program is unavailable or pet waste is not accepted, please dispose of used bags in your regular garbage. Certification does not guarantee acceptance by every municipal composting program.
