Custom Ziplock Mylar Bags from TheCardboardBoxes combine strong barrier protection with convenient reseal closures. Our food-safe bags keep contents fresh after every opening. Print your logo, product info, and brand designs with vibrant inks. Available in various sizes, shapes, and finishes including matte, gloss, Kraft, and clear. Perfect for snacks, coffee, and dried foods. Order Ziplock Mylar Bags from TheCardboardBoxes with low minimums, free design help, and fast worldwide delivery.
Ziplock mylar bags are the workhorse of consumer flexible packaging. They protect what's inside with a genuine foil barrier and give the consumer a simple, effective way to reseal the bag between uses. This combination of protection and convenience has made the ziplock mylar bag the default format across food, supplements, cannabis, pet products, and dozens of other categories.
If you're building consumer-facing packaging for a product used multiple times, a ziplock mylar bag is almost certainly the right format.
The zip lock (also written as zipper or zip seal) is a pair of interlocking plastic profile strips heat-welded or adhered into the bag just below the top opening. The two profiles lock together when pressed and separate when pulled apart.
The mechanism requires no tools, no technique, and no practice. Press to close; pull to open. This simplicity is part of why zip lock closures have become so universal in flexible packaging.
The quality of the zip lock matters. A zip that doesn't press fully closed, doesn't lock evenly along its length, or fails after a few open-close cycles is a frustrating product experience. Quality zip lock profiles, properly heat-welded at the correct position in the bag, last through many cycles without failure.
Standard press-to-close zip: The most common. A single interlocking profile pressed together with finger pressure. Suitable for most consumer dry goods, supplements, and food products.
Child-resistant press-to-close zip: Modified to require simultaneous pressure at two specific points (small raised areas at each end of the zip) to open. Meets CR certification requirements. Required for cannabis retail in legal markets; used voluntarily by supplement and pharmaceutical brands.
Double zip: Two zip profiles, one above the other. Extra security and an additional seal against moisture and oxygen exchange after opening. Used on premium or moisture-sensitive products.
Secure zip with slider: A slider moves along the zip to open and close it, rather than pressing directly. Less common in mylar bags but available for some applications.
The zip lock feature is available across all standard mylar bag formats:
- Stand-up pouches (the most common format; gusseted base allows upright display)
- Flat pillow bags (laid flat for display or shipping)
- Centre-seal bags (the seal runs along the back, giving a clean front panel)
- Gusseted side-seal bags (side gussets for high-volume products)
The zip is always positioned near the top of the bag, below the fill area, allowing product to be added through the zip opening or through a heat-sealed top that's cut open for first use.
Coffee and tea: Ziplock pouches allow coffee drinkers and tea enthusiasts to measure out their portion and reseal, keeping the remainder fresh.
Cannabis and hemp flower: Resealing is essential for a product consumed across multiple sessions. The CR zip version is required in regulated markets.
Protein and supplement powder: Large bags of protein, collagen, or pre-workout powder are used over weeks. A reliable zip lock is essential for freshness.
Dried fruit and nuts: Portion-controlled snacking relies on the ability to open, take some, and reseal.
Pet treats: Single treat dispensing requires reseal functionality.
Spices and dried herbs: Small amounts per use; the rest needs to stay fresh.
The zip lock area of a bag (approximately 1.5 to 2 cm from the top of the printed panel) should be treated as a structural element in the design. Key design elements should be placed below the zip area to avoid being obstructed or appearing on the zip itself.
Some designs deliberately incorporate the zip into the visual layout, framing it or using it as a design element. This can work well if executed thoughtfully.
Custom ziplock mylar bags are available in all sizes, formats, material specifications, and print options. Standard zip lock is included as part of the bag specification without significant additional cost.
At TheCardBoardBoxes, ziplock mylar bags are produced with full custom printing, choice of standard or child-resistant zip, and fast UK delivery. Minimum orders start at 500 units with digital printing. Whether you're launching a new product or standardising your packaging range, the ordering process is clear and efficient.
| Box Style | Any Style |
| Dimension | Custom sizes and shapes |
| Quantity | 250 - 500,000 boxes |
| Paper Stock | (12pt to 24pt) Cardstock, Kraft, E-Flute Corrugated, Cardboard, Bux-Board, Rigid |
| Printing | CMYK, PMS |
| Coating | Matte, Gloss |
| Finishing | Embossing, Debossing, Foil Stamping, Spot UV |
| Included Options | Die Cutting, Scoring, Gluing, Fold & Perforation |
| Proof | Electronic Proof (flat, 3D mock-up), Hardcopy Proofing (upon request) |
| Turnaround | 5 - 7 Business Days |
| Delivery | FLAT via Courier |
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A quick-drying, water-based layer that shields paper from smudges and grime while being eco-friendly.
This liquid finish cures under UV lights, giving your paper a vibrant, glossy shine.
This glossy treatment applies only to select areas, making images or text dramatically stand out.
This unique finish creates a velvety or suede-like texture under your fingertips.
A transparent ink that safeguards the page or provides subtle gloss, though it may yellow with age.
A thin plastic film bonded to paper for durability, available in shiny or non-glare finishes.
A rugged plastic barrier that stops scratches and wear from frequent handling.
This layer delivers a luxurious smooth feel and exceptional tear resistance.
Offset printing is a high-volume printing technique using metal plates and rubber blankets.
Digital printing is a method of printing directly from digital files to media.
UV printing uses UV light to instantly cure ink onto a wide variety of materials.
It is a process that transfers ink through a stenciled mesh screen onto a surface.
Flexography is a high-speed printing process using flexible plates and low-viscosity inks.
Gravure printing is a high-quality, high-speed intaglio printing method using engraved cylinders.
This method applies heat to bond glittering metallic hues like gold or silver onto paper, creating designs that truly shimmer.
This approach raises the paper from below to form a tactile image you can feel with your fingertips.
This technique indents your design into the paper, producing a striking recessed effect that brings dimension to your work.
This unique foil shifts through a vibrant spectrum of colors like a dazzling rainbow when light strikes it at specific angles.
This glossy clear varnish targets select areas of the page to highlight particular elements with eye-catching shine.
This sleek coating delivers a non-reflective, velvety texture that feels luxurious and enhances readability.
This highly reflective layer bounces back light, amplifying colors to make your print vibrant and dynamic.
Hot foil stamping is a printing method using heat to transfer foils for decoration.
Premium solid bleached sulfate, C1S coated for vibrant prints and superior food safety.
Solid bleached sulfate, double-coated for flawless printing and premium packaging appeal.
Pure uncoated unbleached kraft ensures raw, sustainable strength for authentic eco-packaging needs.
Clay-coated newsboard delivers affordable strength with smooth surface for bold branding.
Bold black kraft exudes premium elegance and robust protection for standout packaging.
100% recycled clay-coated newsboard offers eco-friendly durability and cost-effective packaging solutions.
Rustic natural brown kraft provides authentic, biodegradable strength for sustainable food packaging.
Clean white kraft combines natural strength with bright, recyclable appeal for branding.
Rugged natural kraft corrugated board delivers eco-friendly strength for reliable food transport.
Elegant oyster white corrugated board offers subtle sophistication and sturdy packaging protection.
Smooth kemi white corrugated ensures crisp prints and robust durability for premium shipping.
Bright bleached white corrugated provides pristine appearance with superior strength for branding.
Tall A-flute excels in superior cushioning and shock absorption for fragile foods.
Fine B-flute offers smooth printing surface and efficient collapse resistance for boxes.
Versatile C-flute balances strength, printability, and space efficiency for standard packaging.
Micro E-flute creates sleek, flat profiles with excellent print quality for retail.
Single face flute adds lightweight protection and flexibility for delicate food wrapping needs.
Single wall corrugated flute balances cost and cushioning for everyday food shipping demands.
Double wall flute delivers enhanced stacking strength for heavier food packaging loads.
Triple wall flute provides maximum crush resistance for industrial food transport durability.
It is a type of paperboard with a white clay-coated top side, ideal for luxury packaging.
Grey Chipboard Cardboard is a thick, sturdy material made from recycled content, ideal for luxury packaging.
This material is slim yet robust enough to maintain its form effectively for petite, lightweight boxes and resilient cards.
An excellent balanced option that offers a firm feel and reliable safeguarding for typical gift box varieties.
This dense board has a substantial heft in your grasp and ranks as the top pick for superior, long-lasting luxury packaging.
This exceptionally sturdy and inflexible material suits bigger items requiring additional reinforcement for security.
The densest and most resilient choice on offer, giving it a near-wooden sensation for the ultimate premium goods.
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