Grey, white and custom printed coex mailing bags in every standard UK size, or exactly the size you need. 70% recycled options outside the Plastic Packaging Tax. Orders from one pallet.

The sizes UK businesses order most. Every size is made to order, so we can also produce anything in between, down to the millimetre.
| Inches | Millimetres (W × L) | Typical use |
|---|---|---|
| 5 × 7″ | 125 × 180 mm | Jewellery, accessories, small parts |
| 6 × 9″ | 150 × 230 mm | Phone cases, cosmetics, socks |
| 9 × 12″ | 230 × 305 mm | A4 documents, books, small boxes |
| 10 × 14″ | 255 × 355 mm | Folded T-shirts, leggings – our most popular size |
| 12 × 16″ | 305 × 405 mm | Hoodies, jeans, knitwear |
| 13 × 19″ | 330 × 485 mm | Jackets, two or three garments |
| 14 × 21″ | 355 × 535 mm | Larger garments, multi-item orders |
| 17 × 24″ | 430 × 610 mm | Coats, bedding sets |
| 19 × 24″ | 485 × 610 mm | Bulky clothing, home textiles |
| 24 × 36″ | 610 × 915 mm | Duvets, pillows, large items |
| 30 × 40″ | 760 × 1015 mm | Extra-large and bulky items |
Sizes are width × length, excluding the self-seal lip (usually 30–50 mm). Millimetre figures are rounded; we produce to your exact specification.
In the UK, film thickness is quoted in microns (μm) or gauge. One micron equals four gauge. Thicker is not always better: the right gauge protects your goods without paying for plastic you do not need.
| Micron | Gauge | Best for |
|---|---|---|
| 50 μm | 200 g | Light, soft items: accessories, socks, small textiles |
| 60 μm | 240 g | Most clothing – the everyday e-commerce standard |
| 70 μm | 280 g | Heavier garments, boxed items, longer journeys |
| 80 μm | 320 g | Sharp corners, books, multi-item parcels |
| 100 μm | 400 g | Heavy-duty and bulky items |
Not sure? Tell us what you ship and we will include two or three thicknesses in your free sample kit so you can test them. Or work out the weight of any bag with our mailing bag weight calculator.

Co-extruded film: grey or white outside, black inside, fully opaque so contents stay private. The UK's everyday mailing bag.

Your logo and design on every parcel. Turn the first thing your customer sees into part of your brand.

Two adhesive strips: one to send, one for the customer to return the item in the same bag. Popular with fashion retailers.

A clear pocket on the front for invoices and delivery notes, so paperwork travels with the parcel.

Mailing bags with a carry handle, for heavier parcels or click-and-collect orders.

Bags held on a wicket so packers can open, fill and seal quickly on busy fulfilment lines.
The UK Plastic Packaging Tax applies to plastic packaging that contains less than 30% recycled plastic. If your business manufactures or imports 10 tonnes or more of plastic packaging in 12 months, you must register with HMRC.
Our 70% recycled mailing bags are well above the 30% threshold, so the tax does not apply to them. We provide the supporting documentation with your order, so you have the evidence HMRC expects.
Ready for April 2027. From 1 April 2027, only post-consumer recycled plastic will count towards the 30% threshold. Our recycled content is post-consumer (PCR), so our bags stay outside the tax after the change.
Calculate your plastic tax Read our 2027 guide →
This is general information, not tax advice. Check your own position with HMRC or your adviser.
Tell us what you ship. We send samples in the sizes and thicknesses that fit.
Send sizes, thickness and quantities. You get a delivered price within 48 hours.
1–2 pallets in around one week. A mixed full truckload in around 10 days.
DAP by road in around 8–10 days, with proof of origin for 0% duty.
Transit times may vary depending on customs, port congestion and the delivery address.
One pallet. You can start with a single trial pallet, mix several sizes, and scale up to full truckloads.
Any size from 8 × 10 cm up to 78 × 110 cm (approx. 3 × 4″ to 31 × 43″), including all standard UK sizes such as 6 × 9″, 10 × 14″, 12 × 16″ and 17 × 24″. We quote in millimetres and inches.
Most clothing ships well in 60 micron (240 gauge) bags. Light accessories can use 50 micron (200 gauge); heavier or sharp-cornered items 70–80 micron (280–320 gauge); bulky items up to 100 micron (400 gauge).
The tax applies to plastic packaging with less than 30% recycled plastic. Our 70% post-consumer recycled mailing bags are above this threshold, including under the post-consumer-only rule from April 2027, and we supply the supporting documentation.
Orders of 1–2 pallets are produced in around one week and a mixed full truckload in around 10 days. Road transit to the UK takes around 8–10 days; times can vary with customs, port congestion and delivery address.
Goods of Turkish origin qualify for zero import duty under the UK–Türkiye trade agreement with valid proof of origin, which we supply with every shipment. We deliver DAP; import VAT is payable by the importer as usual.
Yes. We print your logo and design on mailing bags in the sizes and colours you need. Send us your artwork and quantities for a quote.
Tell us your sizes and monthly volumes. We reply within one working day.
Or email us at sales@bagmanufacturer.uk