Free digital proof
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Custom Flat Mylar Bags
Custom printed flat mylar pouches sealed on three sides, ideal for samples, single servings and slim retail packs. From 100 bags.
About our bag
Custom Flat Mylar Bags made to order
Custom flat mylar bags, also called three-side seal pouches, are sealed on both sides and the bottom and filled from the top. They lie flat, ship light and stack neatly, which makes them a favorite for samples, single servings, sachets and slim retail packs.
When to choose a flat pouch
Flat pouches use less film than stand-up bags, so the price per bag is lower, and both faces are completely flat for edge-to-edge printing. They are perfect when the product is small or light, when you are sending samples in the mail, or when your bags hang on a peg rather than standing on a shelf.
Popular uses
- Product samples and trial sizes
- Single servings and sachets
- Tea, spices and seasoning packs
- Exit bags and dispensary packaging
- Subscription box inserts
Options you can choose
- Press-to-close zipper, child-resistant zipper or heat seal only
- Tear notches and hang hole
- Matte, gloss, metallic or holographic film
- Clear window or fully opaque
- Rounded corners or a custom die-cut shape
Sizes
Standard flat sizes run from 3 × 4 inches to 6 × 9 inches. If you are filling and heat sealing yourself, choose “heat seal only” and leave a little extra height above the product for the seal.
How to order
Choose a standard size and quantity in the price grid on this page, upload your artwork and check out, or use the quote form for a custom size, finish or a run of more than 5,000 bags. Every order includes a free digital proof, and production takes 7–10 business days after you approve it. Need a child-resistant version? See custom exit bags. Want a shaped bag? Try die-cut mylar bags.
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Specifications
| Material | Printed PET / metallized PET / food-contact PE laminate |
|---|---|
| Style | Flat pouch, 3-side seal |
| Closure | Zipper, CR zipper or heat seal only |
| Printing | Full color both sides |
| Add-ons | Hang hole, tear notches, window, die-cut shape |
| Minimum order | 100 bags |
| Delivery | 7–10 business days after proof approval, shipped across the US |
| Category | Flat Pouches |
Size & fill guide
Dimensions in inches (width × height × bottom gusset). Fill amounts are a guide — dense products fit more, bulky products less. Not sure? We can send a sample.
| Size | Dimensions (in) | Fits about |
|---|---|---|
| Small | 3 x 4 | 3.5 g or a sample serving |
| Medium | 4 x 6 | 7 g / up to 1 oz |
| Large | 5 x 8 | up to 2 oz |
| X-Large | 6 x 9 | up to 4 oz |
Printed pouches without the guesswork
How it works
Choose your bag
Pick a standard size online, or send your size, finish and quantity for a quote.
Free digital proof
We place your artwork on the dieline and send a proof within 24 hours.
We print and make
Printed, laminated, sealed and quality checked in 7–10 business days.
Shipped to you
Tracked shipping across the US, free on orders over $300.
Questions about Custom Flat Mylar Bags
Do flat pouches stand up?
No. They are designed to lie flat, hang on a peg or sit inside another package.
Can I seal them myself?
Yes. Any impulse or band heat sealer will close the top of a mylar pouch.
What is the smallest size?
Our smallest standard flat pouch is 3 × 4 inches. Smaller sizes can be quoted.
Ready to see your bag?
Send your size and artwork — free digital proof and quote within 24 hours.