3.5g Mylar Bags (Eighth). The highest-volume retail size.
The eighth is the bestselling cannabis format in North America and our 3.5g mylar bags are built for it. Right size, right price, right shelf presence. If you're not getting your eighth bags right, you're leaving money on the table.
Last updated July 2026
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5g Mylar Bags (Eighth) The highest-volume retail size
The eighth is the bestselling cannabis format in North America and our 3.5g mylar bags are built for it. Right size, right price, right shelf presence. If you're not getting your eighth bags right, you're leaving money on the table.
Built for cannabis. Made factory-direct.
Why 3.5 Grams Rules Retail
Walk into any dispensary and count the eighth bags on the shelf. They outnumber every other size by a wide margin. The eighth is the entry point for most consumers. It's enough to last a casual user a week or two. It's not a commitment like a quarter or an ounce. And at the price point, it's an impulse buy for people who came in for something else.
Our 3.5g bags are sized for exactly that amount of flower. Too big and your product looks stingy. Too small and it's packed tight, which customers read as old or compressed. We've tested this. The sweet spot is a bag that holds 3.5 grams with just enough headspace to look full without looking empty.
What Fits and What Works
A 3.5 gram bag fits an eighth of flower, obviously. But it also fits two or three pre-rolls if you're doing multipacks. It fits a half ounce of trim for edibles makers. It fits concentrates if you're doing a solid hash slab. The versatility is why we sell more of this size than anything else.
Thickness matters at this size. We use 4.5 mil minimum for eighth bags. Thinner bags puncture when the flower is dense and packed. Dense eighth bags are the number one failure point for cheap packaging. Go too thin and you're replacing product that leaked out in shipping.
CR options are available and required in most states. We can do a CR zipper or a CR slide lock. Both certified. Both resealable. Your customer buys an eighth, opens it, takes what they need, and seals it back up. That's how retail cannabis works now.
What we make
- Sized for 3.5g with optimal fill appearance
- 4.5 mil minimum thickness for dense flower
- CR zipper and slide lock options
- Custom dimensions for pre-roll multipacks
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 3.5g Mylar Bags (Eighth)
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
- ✓ 3.5 grams of dried cannabis flower (the highest-volume retail SKU)
Not Ideal For
- ✕ Bulk volume storage (ounces/pounds)
- ✕ Heavy edibles requiring rigid protection against crushing
Material Specifications
| Construction | PET/VMPET/PE for budget options; PET/AL/LLDPE for premium preservation; matte or soft-touch exterior finishes |
| Thickness | 3.5 to 5.0 mil (3.5 mil is structurally sufficient for 3.5g payload; 4.5 mil feels more premium) |
| Oxygen Barrier (OTR) | OTR 0.5 to 1600+ cc/m2/day depending on foil vs VMPET construction (premium AL foil achieves lower end) |
| Moisture Barrier (MVTR) | MVTR 1.0 to 6.0 g/m2/day (MVTR critical to prevent flower drying and terpene loss) |
| Light Protection | 100% opaque with aluminum foil; partial with VMPET only |
| Odor Barrier | Complete with AL foil construction; reduced with VMPET-only budget options |
MVTR is critical for 3.5g bags to prevent flower from drying out and losing terpene content. Without proper barrier, THC degrades to CBN and terpenes evaporate. Below 3.5 mil, bags lack meaningful barrier properties. Premium 4.5 mil with true aluminum core extends shelf life from weeks to 12-18 months.
Compliance
Minimum Order & Timeline
MOQ: 1,000 units for standard digital prints; 10,000 for gravure/flexo bulk runs
Timeline: 10 to 15 business days
Price Factors
- Small dimensional size keeps raw material costs low
- Finish effects (foil stamping, spot UV)
- CR compliance
- Quantity tiers
Why Factory Direct?
Because dimensional size is small, raw material costs are low. Factory-direct pricing at $0.08-$0.25 per unit eliminates 30-50% broker markup, making this highly cost-sensitive SKU even more competitive.
Everything you need to know.
What are the exact dimensions of your standard 3.5g bag?
Can I use the eighth bag for pre-roll multipacks?
Why do some eighth bags look half empty on the shelf?
What's the minimum thickness for eighth bags?
What materials are 3 5g eighth mylar bags made from?
What products are 3 5g eighth mylar bags best for?
What is the minimum order for 3 5g eighth mylar bags?
Is 3 5g eighth mylar bags child-resistant certified?
Are 3 5g eighth mylar bags FDA compliant?
Do 3 5g eighth mylar bags meet Health Canada requirements?
More from CropPak.
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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.


