Mailing Bags

Mailing bags, also known as shipping bags, are lightweight, flexible packaging solutions created for e-commerce businesses shipping soft or flat items. They are particularly suited for clothing, accessories and textiles, offering protection from moisture and dirt during transit without the bulk and weight of a cardboard box. This keeps postage costs down for both domestic and international shipments. The Packhelp range includes two primary types: polythene mailers for waterproof performance and expandable paper mailing bags with a gusset for slightly bulkier items. Both formats feature a simple peel-and-seal adhesive strip, removing the need for extra packing tape and speeding up the fulfilment process for online stores.

Waterproof poly mailing bags UK

Our polythene shipping bags consist of a durable 50-micron LDPE film that is both waterproof and tear-resistant, securing contents against the elements during delivery. Each bag incorporates a strong self-adhesive strip; simply peel the protective liner and fold the flap to create a secure, tamper-evident seal. We offer these mailers in a range of sizes, from a compact 17.5 x 25.5 cm up to a large 45 x 55 cm, covering equivalents for A4 and A3 documents or folded garments. The film is available in white, black or clear finishes, and the opaque options ensure the privacy of the contents inside. For a fully branded solution, the Custom Poly Mailer Bag allows for a design printed in either a single Pantone spot colour or full-colour CMYK on one or both sides. We make all our poly mailers in Europe.

Gusseted paper mailing bags

For businesses that prefer a paper-based solution, our paper mailing bags offer a robust alternative. Constructed from brown kraft paper in weights from 70 to 110 gsm, they feature an expandable side gusset that creates extra depth for items like jumpers or multiple garments. A Custom Paper Mailer Bag provides a great canvas for custom branding.

Personalise your custom mailing bags

Any business can create fully personalised custom mailing bags using our online editor. Print a simple logo in one Pantone colour or cover the entire surface with a full-colour CMYK design on one or both sides of the bag. This transforms a functional mailer into a key part of the customer unboxing experience.

Shipping bags for UK and international post

For businesses asking where can I buy mailing bags suitable for multiple carriers, we size the range for compatibility. These postal mailing bags fit Royal Mail, Evri and DPD parcel specifications, and their low weight helps to manage shipping costs. This makes them a practical choice for domestic post and for international shipments, whether sending shipping bags to Canada, Germany, Italy, Cyprus, or as far as Dubai and Hong Kong. Their durability also makes them a popular choice for marketplace sellers, which is why we offer specific solutions like mailing bags for Vinted. If you require unprinted packaging quickly, a Plain Poly Mailer Bag is available for immediate dispatch. For those wondering where to buy mailing bags, Packhelp provides a direct source for both plain and custom-printed options to businesses across the UK.