In short: Most apparel brands need three zipper bag sizes: 25 x 35 cm for t-shirts and underwear, 30 x 40 cm for sweatshirts and jeans, and 35 x 45 cm or 40 x 50 cm for hoodies, jackets and multi-packs. Use 0.05 to 0.06 mm film for lightweight garments and 0.08 to 0.10 mm for heavy items, and add 2 to 3 cm to the folded garment on each side so the bag closes without creasing. Heyi Custom Bags produces custom frosted and clear zipper bags in all of these sizes with an MOQ of 5,000 pcs per design.
Standard zipper bag sizes by garment
| Garment (folded) | Bag size (W x H) | Film thickness | Typical fill |
|---|---|---|---|
| Underwear, socks, accessories | 20 x 28 cm | 0.05 mm | 1 to 2 pieces |
| T-shirt, polo, leggings | 25 x 35 cm | 0.05 to 0.06 mm | 1 piece |
| Sweatshirt, jeans, dress | 30 x 40 cm | 0.06 to 0.08 mm | 1 piece |
| Hoodie, knitwear, 2-pack t-shirts | 35 x 45 cm | 0.08 mm | 1 heavy or 2 light pieces |
| Jacket, coat, 3-pack bundle | 40 x 50 cm | 0.08 to 0.10 mm | 1 bulky or 3 light pieces |
Width is the opening with the zipper closed; height runs from the bottom seal to the zipper. Any size can be adjusted in 1 cm steps.
How to calculate the size from a folded garment
- Fold the garment the way it will be packed, then measure width, height and thickness.
- Add 2 cm to the width on each side (4 cm total) so the bag slides on without stretching.
- Add 3 to 5 cm to the height to leave room for the zipper track and a lip above it.
- For garments thicker than 4 cm (hoodies, puffer jackets), add a 4 to 6 cm side gusset or move one size up.
Thickness: 0.05 mm vs 0.08 mm vs 0.10 mm
0.05 to 0.06 mm (50 to 60 micron) is the standard for t-shirts, underwear and items under 300 g. 0.08 mm (80 micron) suits jeans, sweatshirts and knitwear up to 800 g, because it resists punctures from buttons, rivets and hangers. 0.10 mm (100 micron) suits jackets, multi-packs and bags the customer will reuse for storage. Frosted CPE (softer, matte) and clear LDPE (glossy, shows the garment) are available at every thickness; see frosted vs clear zipper bags for apparel.
Closures and options that affect the size
- Press-to-close zipper: no extra width needed; the standard for under 0.08 mm film.
- Slider zipper: add 1 cm to the width for the slider housing; recommended for 0.08 mm and above.
- Hang hole: add 2 cm above the zipper for a euro hole or round hole.
- Side gusset: 4 to 6 cm for bulky knitwear; the flat size stays the same.
Products: custom printed frosted zipper bags and clear zip lock apparel bags.
FAQ
What size zipper bag fits a folded t-shirt?
A 25 x 35 cm zipper bag fits a standard adult t-shirt folded to about 22 x 30 cm; use 30 x 40 cm for oversized or heavyweight tees.
What size zipper bag do hoodies need?
Most adult hoodies fit a 35 x 45 cm bag in 0.08 mm film; add a 4 to 6 cm gusset or move to 40 x 50 cm for heavyweight fleece or sizes above XL.
Can one bag size be used for the whole collection?
Most brands run two sizes, 25 x 35 cm for tops and 35 x 45 cm for outerwear, with the same artwork; the MOQ of 5,000 pcs applies per size and design.
Is 0.05 mm film strong enough for e-commerce shipping?
Yes as inner packaging inside a poly mailer or carton; for bags that ship on their own, use 0.08 mm or a poly mailer.
Custom Apparel Zipper Bags From Heyi Custom Bags
Heyi Custom Bags makes frosted CPE and clear LDPE zipper bags from 15 x 20 cm to 60 x 80 cm in 0.01 to 0.2 mm film at our ISO 9001, ISO 14001 and GRS certified factories in Dongguan, China and Haiphong, Vietnam, with PCR recycled and mono-PE options. MOQ is 5,000 pcs per design for brands, retailers and wholesalers; production takes 15 to 25 days after artwork approval, shipped direct to the USA, UK, Canada, Australia and the EU. Request a zipper bag quote with your folded garment sizes for a size recommendation and digital proof within 24 hours.