Smell-Proof Mylar Bags. High-Barrier. Custom-Printed.
Real smell proof mylar bags with multi-layer metalized film that traps terpenes and blocks oxygen. Not a Ziploc with a fancy label. Your product stays fresh and your shipping stays discreet.
Last updated July 2026
Tell us what you need.
We'll find the best all-in price.
High-Barrier Custom-Printed
Real smell proof mylar bags with multi-layer metalized film that traps terpenes and blocks oxygen. Not a Ziploc with a fancy label. Your product stays fresh and your shipping stays discreet.
Built for cannabis. Made factory-direct.
Why Ziploc Doesn't Work for Cannabis
Ziploc bags are polyethylene. Single layer. Odor molecules pass through polyethylene like it isn't there. That's why your backpack smells like the inside of your bag even when it's sealed. Real smell proof bags use multiple layers of different materials, each blocking different things. Our bags have a metalized PET layer that reflects heat and blocks light, a nylon layer for puncture resistance, and an LLDPE sealant layer that's FDA food-contact approved.
The metalized layer is what makes it work. Aluminum is the best odor barrier we have. It's why coffee bags and medical pouches use it. When you seal a quality mylar bag, the smell stops at the film. We've shipped test bags full of gassy flower across the country and the outer packaging doesn't pick up a trace.
Terpene Preservation
Terpenes are volatile. They evaporate at room temperature. Every time your bag breathes, you lose flavor and potency. A proper smell proof mylar bag has an oxygen transmission rate under 0.01 cc per 100 square inches per day. Compare that to a Ziploc at 350+ cc. Your product in our bag will taste the same in six months as it did the day you packed it.
The seal matters too. We use a heat sealable inner layer that bonds at 160 degrees Celsius. That creates a hermetic seal that doesn't leak. A zipper seal, even a good one, lets oxygen in slowly. For long-term storage, heat seal the top and you're set for months.
What we make
- Multi-layer metalized film construction
- Oxygen transmission rate under 0.01 cc/100 sq in/day
- Heat sealable for hermetic long-term storage
- FDA food-contact approved inner layer
One honest, all-in price.
We work directly with a bench of factories - not as a broker. So we match you to the right one and bring back the best all-in price: packaging, printing, shipping, and any duties or tax - in one number with no middleman and no surprises.
Compliance standards we build to
Every product we make meets or exceeds the relevant regulatory standards. We provide the actual test certificates with every order, not just a claim on a website.
- 16 CFR 1700.20 - CPSC child-resistant packaging protocol (U.S.)
- ASTM D3475 - Standard classification for child-resistant packaging
- FDA food-contact compliance - food-grade materials for cannabis edibles and flower
- Health Canada cannabis packaging and labelling - plain packaging, standardized symbol, bilingual
Finish options for Smell-Proof Mylar Bags
All finishes are available on every product. Pick yours in the configurator above.
Four steps. One honest price.
No quote walls, no hidden shipping, no surprise duties. Just the best all-in price - packaging, printing, and shipping - usually same day.
Tell Us What You Need
Product, size, quantity. That's it - send it over and we get to work.
Get Your Best Price (Usually Same Day)
We take your job to our factory network and bring back the best all-in price - packaging, printing, and shipping in one honest price. No hidden costs, no 'oh, plus shipping.'
Your Call
Pick your tradeoff - cheapest or fastest, overseas or North American. Free design help and a digital proof before anything runs.
Made & Shipped
Printed direct at the factory and shipped to your door. What we quoted is what you pay.
Is This the Right Packaging for Your Product?
Ideal For
- ✓ Highly aromatic premium indoor flower
- ✓ Pungent concentrates packaged in secondary containers
- ✓ Stealth retail transport
Not Ideal For
- ✕ Extremely cost-sensitive budget products (heavy foil and nylon layers increase per-unit cost)
- ✕ Liquid products
Material Specifications
| Construction | Nylon/AL/PE laminates or heavy PET/Foil/LLDPE structures with oriented nylon for tensile strength and odor-trapping density |
| Thickness | 5.0 to 7.5 mil (thicker materials prevent micro-pinholes in the foil layer that allow odor escape) |
| Oxygen Barrier (OTR) | OTR < 0.01 cc/m2/day |
| Moisture Barrier (MVTR) | MVTR < 0.01 g/m2/day |
| Light Protection | 100% opaque (blocks all UV and visible light) |
| Odor Barrier | Complete hermetic seal - traps 95%+ of odors through thick aluminum foil with minimal micro-pinholes |
Terpenes act as natural solvents that degrade thin plastic over time. A 5-mil bag with a dense foil layer has 2-3x fewer micro-pinholes than a 3.5-mil bag. Without proper odor barrier, terpenes permeate the substrate and the product loses its aromatic profile while creating detectable odor that compromises stealth and retail presentation.
Compliance
Minimum Order & Timeline
MOQ: 5,000 to 10,000 units for stock sizes; 20,000+ for custom-printed smell-proof structures
Timeline: 10 to 15 business days for standard production
Price Factors
- True aluminum foil thickness (primary cost driver)
- Nylon layer inclusion
- Mil thickness
- Print and finish options
Why Factory Direct?
The primary cost driver is true aluminum foil thickness. Factory-direct sourcing eliminates 30-50% broker markup on the heavy foil and nylon materials that make these bags effective.
Everything you need to know.
Can drug dogs smell through these bags?
What's the difference between smell proof and odor resistant?
Do smell proof bags also block moisture?
Will heat sealing damage the smell proof barrier?
What materials are smell proof mylar bags made from?
What products are smell proof mylar bags best for?
What is the minimum order for smell proof mylar bags?
Is smell proof mylar bags child-resistant certified?
Are smell proof mylar bags FDA compliant?
Do smell proof mylar bags meet Health Canada requirements?
Get My Best Price.
One request, direct from the factory, your best price. Send us what you need and we'll come back - usually same day - with one honest, all-in quote. Free, no obligation.