Flexible Packaging Bags: A Practical Guide for Cannabis, CBD, Vape Oil and Herbal Products
Flexible packaging bags are lightweight, cheap to ship, and easy to print on — which is why they dominate shelf-ready packaging for cannabis, CBD, vape oil and herbal products. At CHITAI Packaging, we manufacture custom flexible packaging bags for exactly these markets, from structure design to gravure printing.
1、Common Bag Types
Different products call for different bag structures. Picking the right style up front saves trouble in filling, sealing, transport and retail display.
Stand-Up Pouches
The workhorse of retail packaging. A bottom gusset lets the bag stand upright on the shelf, so it photographs well and merchandises well.

Standard build options:
- Resealable zipper, or child-resistant (CR) zipper
- Matte or glossy finish
- Custom printing across the full surface
- Optional windows and tear notches
Cannabis flower, CBD products and herbal goods almost always ship in this format.
Three-Side Seal Bags
Sealed on three edges, open on one side for filling. Simple structure, low unit cost — the go-to for flat, single-serve packaging.

Typical uses:
- Vape oil packaging
- Pre-roll packaging
- Sample sachets
- Small single-use pouches
We can adjust material, size, printing and functional features to match your filling line.
Other Formats
Flat-bottom bags, quad-seal bags, side-gusset bags and custom-shaped pouches round out the range. Each trades off capacity, shelf appearance and filling efficiency differently — tell us your product and we’ll recommend a structure.
2、Material Structures
Barrier performance comes from the laminate, not any single film. Common layers:
- PET: strength, printability, dimensional stability
- MOPP: matte surface and premium finish
- VMPET: metallic look with a real barrier upgrade
- PE: flexibility and the heat-seal layer
- Aluminum foil: blocks light, moisture and oxygen
We laminate these into multilayer structures tuned to your product, shelf life target and storage conditions — not a one-size-fits-all recipe.
3、Functional Features
Looks sell, but function keeps customers. CHITAI builds in:
- Child-resistant zipper closures
- Resealable zippers
- Smell-proof barrier structures
- Tear notches
- Matte / glossy finishes, spot UV, metallic printing
- Custom sizes and thicknesses
For child-resistant packaging, closure design and the full package configuration should be validated against the applicable testing requirements — we design with that in mind.
4、Applications by Industry
- Cannabis packaging: CR stand-up pouches and flat pouches, custom printed
- CBD packaging: customizable materials and full-surface branding
- Vape oil packaging: compact bags sized for oil products and accessories
- Tobacco and herbal packaging: resealable pouches with distinct shelf branding
The right structure balances product protection, function and brand presentation.
- What CHITAI Packaging Delivers
We are a China-based flexible packaging manufacturer focused on custom printed bags:
- Custom stand-up pouches and three-side seal bags
- Cannabis and CBD packaging
- Child-resistant packaging solutions
- Vape oil packaging bags
- Gravure printing with custom artwork
- Multiple laminate structures and finishing options
We handle the whole chain — material selection, structural design, printing, production — and work directly with you on specs.
Ready to start? Send us your product and requirements, and we’ll propose structures, quote, and get samples moving.