Custom Poly Bags / Flip Top Poly Bags
A flip top bag closes with a fold-over lip, not with a zipper.
A custom flip top poly bag uses a fold-over flap and closure strip to keep contents clean and contained during packing, storage or shipment. It gives the user a fast closing method, but it does not automatically make the bag resealable. The closure and film must match how often the package will be opened.
Direct Answer
First decide whether the pack opens once or many times.
For one-time protection, a permanent adhesive lip can close the bag quickly after packing. If staff or customers need to reopen the bag, choose a resealable closure or move the project to a zipper pouch. Then, select the film gauge and dimensions around the contents, not around the old bag size.
Flip top bags work well for apparel, linens, printed material, kits, samples and clean parts. Add ventilation when the contents need airflow, and add a hang hole when retail display requires it.

Closure Options
Choose the closure from the opening routine.
| Closure | How it works | Best use |
|---|---|---|
| Permanent adhesive lip | Fold the lip over and press the adhesive strip closed | One-time packing, shipping and dust protection |
| Resealable tape | Open and close the lip several times | Light-duty inspection and repeated access |
| Plain fold-over lip | Fold and secure with tape, a staple or an external label | Internal packing and simple protection |
| Zip closure | Press-to-close track along the opening | Frequent opening, owner storage and product reuse |
Specify the bag around the actual contents.
Usable size
Confirm the internal dimensions after the lip folds over. The space lost to the closure matters when the contents fit tightly.
Film gauge
Choose a thicker film for sharp corners, heavier items or rough handling. Thin film suits light, clean contents.
Features
Add a hang hole, vent holes, gusset or print area only when the packing and retail route requires them.
Flip Top Bag Questions
What buyers ask before ordering flip top poly bags
What is a flip top poly bag?
A flip top poly bag has a fold-over lip at the opening. The user folds the lip down and closes it with an adhesive strip, tape or another external method.
Is a flip top bag resealable?
Only when the bag uses a resealable closure. A permanent adhesive strip usually closes once, while a resealable tape or zipper supports repeated opening.
What is the difference between flip top and zipper bags?
A flip top bag closes at a folded lip. A zipper bag closes with a press-to-close track inside the opening. Choose the zipper when repeated opening is a core requirement.
How do I choose the right film gauge?
First, review the contents weight and edge condition. Then, choose a gauge that prevents puncture without making the bag stiff or expensive. We confirm the final gauge during the quote.
Can I print a logo or barcode?
Yes. We can print logos, barcodes, warnings or handling instructions on the visible panel. Keep barcode contrast and quiet zones in mind during artwork review.
Can flip top bags have vent holes or a hang hole?
Yes. Vent holes support airflow when condensation or freshness is a concern, while a hang hole lets the package sit on a retail peg. Confirm both features before print and tooling are finalized.
What is the minimum order for custom flip top bags?
Minimums depend on bag size, film gauge, closure, print and any added features. We can review a trial quantity before a larger production order.
Related poly bag routes.
For repeated opening, compare Zipper Pouches. For retail hanging, review Header Bags. For industrial components, use Custom Parts Bags.
Flip Top Bag Requirement
Send the product size, weight, opening frequency and preferred closure.
Include print, hang-hole and vent requirements so the film and closure can be matched correctly.
Request a Flip Top Bag Quote