iSOUL Red Mailing Bags and Parcel Bags – strong, opaque, self-seal postage bags in 7 sizes, sold in packs of 100, 200, 500 and 1000. Whether you call them mailing bags, parcel bags, postal bags or plastic mailers, these are made from tough 60 micron polythene with a bold red outside and black inner lining, keeping contents private and protected from rain and dirt. A bright, festive colour that gets noticed on the doorstep – popular with Vinted, eBay, Etsy and Depop sellers and online shops across the UK. Free UK delivery on every order.
Size guide – which parcel bag do I need?
| Size (inches) | Size (mm) | Best for |
|---|---|---|
| 6 x 9" | 152 x 229 mm | Jewellery, accessories, socks, small items |
| 9 x 12" | 229 x 305 mm | T-shirts, tops, books, A4 documents |
| 10 x 14" | 254 x 356 mm | Dresses, jeans, folded clothing |
| 12 x 16" | 305 x 407 mm | Jumpers, hoodies, cardigans |
| 14 x 20" | 356 x 508 mm | Coats, jackets, several items together |
| 17 x 24" | 432 x 610 mm | Bulky clothing, bedding, larger orders |
| 24 x 36" | 609 x 914 mm | Duvets, cushions, large soft items |
Why sellers choose iSOUL red parcel bags
- Strong 60 micron film: thick enough to resist tearing in transit, yet light to keep postage costs down.
- Permanent self-seal strip: peel and press – no tape needed. Once sealed the parcel bag can't be opened without tearing, so parcels are tamper-evident.
- Fully opaque: red outside, black inner lining, so nobody can see what's inside.
- Water and dirt resistant: protects items from rain and grime during delivery.
- Perfect parcel bags for clothes: ideal for posting clothing, accessories and other soft goods that don't need a box.
- Bold, festive colour: red parcels stand out – perfect for Christmas and Valentine's orders, gifts and eye-catching branding.
- Bulk packs save money: choose 100, 200, 500 or 1000 bags – the bigger the pack, the lower the cost per bag.
- Works with all couriers: Royal Mail, Evri, DPD, Yodel, InPost and Vinted drop-off points.
Frequently asked questions
What's the difference between mailing bags and parcel bags?
None – they're the same thing. Mailing bags, parcel bags, postage bags, postal bags and poly mailers are all names for self-seal plastic bags used to post items.
What size parcel bag do I need for Vinted?
Most Vinted sellers use 10 x 14" for everyday clothing like dresses and jeans, 9 x 12" for T-shirts and tops, and 12 x 16" or larger for jumpers and coats.
Are red mailing bags good for Christmas orders?
Yes. Many sellers switch to red bags in the festive season so gift orders feel special on arrival.
Can I send these as a Royal Mail Large Letter?
The 6 x 9" and 9 x 12" bags can be, as long as the packed parcel stays within Royal Mail's Large Letter limits (353 x 250 x 25 mm, up to 750 g). Please check Royal Mail's current size rules before posting.
Are the bags see-through?
No. They're fully opaque with a black inner layer, so contents stay private.
Can I reopen and reseal them?
No. The seal is permanent for security, which keeps your parcel tamper-evident.
Are they waterproof?
They're water resistant and protect contents from rain and dirt in transit.
Can I write on them or use labels?
Yes. Shipping labels stick well and you can write on them with a permanent marker.
Is delivery free?
Yes, UK delivery is free on all orders, with no minimum spend.
Need more than 1000 parcel bags?
For bulk and trade orders, call or WhatsApp us on +44 7418 098951 for a bulk discount.
Red Mailing Bags
iSOUL Red Mailing Bags – strong, opaque, self-seal parcel bags in sizes from 6x9 to 17x24 inch. A bold, festive red that gets noticed on the doorstep – perfect for Christmas and Valentine's orders, gifts and eye-catching branding. Ideal for posting clothes and soft goods, and popular with Vinted, eBay, Etsy and Depop sellers and small businesses across the UK. Free UK delivery on every order.
Shop red mailing bags by size
| Product | Price | Buy | |
|---|---|---|---|
| 6 x 9 inch Red Mailing Bags152 x 229 mm | |||
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100 x Red Mailing Bags 6 x 9 inchPack of 100 · 152 x 229 mm · Free UK delivery | £6.496.5p per bag | VIEW DETAILS |
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500 x Red Mailing Bags 6 x 9 inchPack of 500 · 152 x 229 mm · Free UK delivery | £19.994p per bag | VIEW DETAILS |
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1000 x Red Mailing Bags 6 x 9 inchPack of 1000 · 152 x 229 mm · Free UK deliveryBEST VALUE | £32.993.3p per bag | VIEW DETAILS |
| 9 x 12 inch Red Mailing Bags229 x 305 mm | |||
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100 x Red Mailing Bags 9 x 12 inchPack of 100 · 229 x 305 mm · Free UK delivery | £9.499.5p per bag | VIEW DETAILS |
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500 x Red Mailing Bags 9 x 12 inchPack of 500 · 229 x 305 mm · Free UK delivery | £31.996.4p per bag | VIEW DETAILS |
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1000 x Red Mailing Bags 9 x 12 inchPack of 1000 · 229 x 305 mm · Free UK deliveryBEST VALUE | £52.495.2p per bag | VIEW DETAILS |
| 10 x 14 inch Red Mailing Bags254 x 356 mm | |||
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100 x Red Mailing Bags 10 x 14 inchPack of 100 · 254 x 356 mm · Free UK delivery | £9.9910p per bag | VIEW DETAILS |
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500 x Red Mailing Bags 10 x 14 inchPack of 500 · 254 x 356 mm · Free UK delivery | £34.997p per bag | VIEW DETAILS |
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1000 x Red Mailing Bags 10 x 14 inchPack of 1000 · 254 x 356 mm · Free UK deliveryBEST VALUE | £62.996.3p per bag | VIEW DETAILS |
| 12 x 16 inch Red Mailing Bags305 x 407 mm | |||
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100 x Red Mailing Bags 12 x 16 inchPack of 100 · 305 x 407 mm · Free UK delivery | £11.4911.5p per bag | VIEW DETAILS |
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500 x Red Mailing Bags 12 x 16 inchPack of 500 · 305 x 407 mm · Free UK delivery | £38.997.8p per bag | VIEW DETAILS |
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1000 x Red Mailing Bags 12 x 16 inchPack of 1000 · 305 x 407 mm · Free UK deliveryBEST VALUE | £70.997.1p per bag | VIEW DETAILS |
| 14 x 20 inch Red Mailing Bags356 x 508 mm | |||
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100 x Red Mailing Bags 14 x 20 inchPack of 100 · 356 x 508 mm · Free UK delivery | £12.4912.5p per bag | VIEW DETAILS |
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500 x Red Mailing Bags 14 x 20 inchPack of 500 · 356 x 508 mm · Free UK delivery | £49.9910p per bag | VIEW DETAILS |
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1000 x Red Mailing Bags 14 x 20 inchPack of 1000 · 356 x 508 mm · Free UK deliveryBEST VALUE | £81.498.1p per bag | VIEW DETAILS |
| 17 x 24 inch Red Mailing Bags432 x 610 mm | |||
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100 x Red Mailing Bags 17 x 24 inchPack of 100 · 432 x 610 mm · Free UK delivery | £13.9914p per bag | VIEW DETAILS |
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500 x Red Mailing Bags 17 x 24 inchPack of 500 · 432 x 610 mm · Free UK delivery | £59.9912p per bag | VIEW DETAILS |
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1000 x Red Mailing Bags 17 x 24 inchPack of 1000 · 432 x 610 mm · Free UK deliveryBEST VALUE | £99.9910p per bag | VIEW DETAILS |
Red mailing bag size guide
| Size (inches) | Size (mm) | Best for |
|---|---|---|
| 6 x 9" | 152 x 229 mm | Jewellery, accessories and socks |
| 9 x 12" | 229 x 305 mm | T-shirts, tops and A4 documents |
| 10 x 14" | 254 x 356 mm | Dresses, jeans and folded clothing |
| 12 x 16" | 305 x 407 mm | Jumpers and hoodies |
| 14 x 20" | 356 x 508 mm | Coats and several items together |
| 17 x 24" | 432 x 610 mm | Bulky clothing and bedding |
Frequently asked questions
What size red mailing bag do I need for Vinted?
Most Vinted sellers use 10 x 14" for everyday clothing like dresses and jeans, 9 x 12" for T-shirts and tops, and 12 x 16" or larger for jumpers and coats.
What's the difference between mailing bags and parcel bags?
None – mailing bags, parcel bags, postage bags and poly mailers are all names for the same self-seal plastic bags used to post items.
Are the bags see-through?
No. They're opaque, so contents stay private, and the permanent self-seal strip makes every parcel tamper-evident.
Is delivery free?
Yes, UK delivery is free on all orders, with no minimum spend.
Need a bigger quantity? Call or WhatsApp us on +44 7418 098951 for a bulk discount. Looking for other colours? Browse all our mailing bags.