Postal Products

Grey mailing bags

Most popular dispatch sack. 55 micron polythene. Peel & seal strip.

14 Items

Paper mailing bags

1 ply and 2 ply robust and water-resistant paper mailing bags. Peel-&-seal seal strip for easy closure. A popular alternative to polythene mailing bags.

11 Items

Kite mailers

Great value general purpose bubble mailer, perfect for offices and mailing out products.

32 Items

Kite enviro mailers

Environmentally friendly alternative to classic bubble lined envelopes. Padded with our own Hivewrap!

10 Items

Brown postal boxes

These one-piece cartons are quick and easy to assemble. Each box has a fold-down hinged lid, with tuck-in-flaps.

54 Items

White postal boxes

Single wall cardboard boxes with a white outer and inner. Choose from hinged lid with tuck-in flaps or folder wrap.

15 Items

E-commerce boxes

100% recyclable boxes designed with a crash lock base, peel-&-seal and tear off easy-open strip. Available in many sizes.

10 Items

Large letter boxes

These narrow postal boxes comply with the Royal Mail’s large letter size specifications by all having a height, sometimes called ‘thickness’, measurement no larger than 25mm.

9 Items

Postal tubes

For sending and protecting artwork, prints or plans in the post. Choose from round or triangular tubes.

3 Types

Cardboard envelopes & mailers

Protect your goods in the post with a strong cardboard mailer. Helps prevent bending or creasing.

3 Types

Mailing bags with handles

Mailing bags with handles for easy handling and carrying.

1 Items

Eco mailing bags

White mailing bags produced from sugar cane, a sustainable alternative to standard plastic mailers. Fully recyclable and carbon neutral.

8 Items

Waterproof mailers

Strong co-extruded polythene offers perfect weatherproofing protection. Lined with high-quality shock-resistant bubble wrap.

4 Items

Heavy duty mailing bags

Heavy duty 90 micron polythene bags with adhesive strip, ideal for packaging heavy or sharp items.

6 Items

Returnable paper mailing bags

100% recyclable returnable mailing bags made with brown kraft sustainably sourced paper. Simplifies the returns process.

3 Items

Jiffy padded bags (paper filled)

The original padded envelope from Jiffy. Filled with macerated paper (paper fibres).

20 Items

Clear polythene mailing bags

Transparent mailing bags ideal for magazines, brochures, flyers and much more. 40 micron with peel and seal strip.

6 Items

Picture frame boxes

Telescopic picture frame boxes. Designed to pack flat items such as paintings, frames and mirrors.

3 Items

Custom printed bubble envelopes

Envelopes printed with your own message or company logo.

12 Items

Metallic bubble envelopes

Padded coloured metallic envelopes for when presentation matters. Range of colours available with peel-&-seal closure.

10 Items

Temperature controlled pouches

Envelope-like pouches that provide protection and insulation for a range of products. Each size equipped with easy peel-&-seal strip.

16 Items

White cardboard boxes

Corrugated white 0201 style cardboard boxes with brown inner. Delivered flat packed and easy to assemble.

15 Items

CD, DVD & LP packaging

Corrugated cardboard postal boxes and mailers for DVDs, CDs and LPs. Designed to protect media during transit and storage.

9 Items

Foam lined boxes & foam inserts

Protective foam inserts, available with made to measure postal boxes.

2 Types

Insulated box liners

Liners that act as an insulated inner that simply fit inside a carton. Goods placed inside maintain a constant temperature. Features a peel-&-seal strip.

16 Items

All board and board backed envelopes

Robust envelopes with peel and seal strips. Helps to ensure your goods do not get bent or creased during transit.

5 Items

Bottle packaging

Protective packaging designed for the use of bottles, spirits and much more.

6 Types

Labels

A selection of plain labels as well as hazard & warning labels. Ideal for shipping and posting.

17 Types

Postal packaging covers the boxes, envelopes and mailing solutions used for sending products, documents and parcels across the UK. Whether you run an ecommerce store, office or fulfilment operation, the right postal packaging helps keep contents secure while maintaining a professional finish.

At Kite Packaging, we stock a large range of postal packaging designed for businesses and companies of all sizes. From postal boxes and mailing bags to padded envelopes and protective solutions, our range supports efficient sending, reliable protection and clear pricing.

A large portion of our products are compatible with Royal Mail guidelines, making it easier to manage postage costs and keep your service consistent across the UK.

Choose the Right Postal Packaging for Your Business

Choosing the right postal packaging depends on what you are sending, its destination and the level of protection required. Small items may only need lightweight envelopes, while larger or fragile contents will require stronger boxes or padded solutions.

When selecting packaging, consider:

The size and weight of your contents
Whether items need additional protection in transit
If recyclable materials are important for your brand
How the packaging will represent your business to customers

Well designed packaging not only keeps products secure but also creates a lasting impression when envelopes arrived at their destination. With a wide range of sizes, board grades and finishes available, businesses can select options that fit their products properly and make sending easier.

Postal Boxes and Large Letter Boxes

Postal boxes are a strong and reliable option for sending small and large products through the post. Manufactured from durable corrugated board, they provide protection for contents while remaining lightweight enough to help control costs.

Our range includes brown postal boxes, white postal boxes and ecommerce boxes in a variety of sizes. Large letter boxes are designed to meet Royal Mail large letter dimensions, helping businesses reduce postage costs where possible. Options such as picture frame boxes and white cardboard boxes are also available for specific products like books, prints and flat items.

Key features of our postal boxes include:

Strong board construction for secure transit
Recyclable materials across a large portion of the range
Multiple sizes to fit different contents
Clean colour options to suit your brand

With a wide range of box sizes in stock and available to order in single pack quantities or bulk, businesses across the UK can supply postal boxes that match their packaging needs and support a consistent delivery service.

Mailing Bags and Envelopes

Mailing bags and envelopes offer a lightweight and flexible solution for sending products across the UK. Suitable for clothing, documents and small items, they help reduce weight while keeping contents secure during transit.

Our range includes grey mailing bags, paper mailing bags, eco mailing bags and heavy duty mailing bags in multiple sizes. Many options feature peel and seal closures for a strong, secure finish. We also stock business envelopes, board backed envelopes and clear mailing solutions, giving companies a wide range of recyclable and protective options designed for everyday packaging needs.

Padded and Protective Postal Packaging

For fragile or higher value products, padded solutions provide additional protection. Jiffy bags and bubble lined envelopes help cushion contents and reduce the risk of damage during sending and delivery.

We also offer foam lined boxes, bottle packaging and specialist protective products designed to keep items secure in transit. Many options are available in different sizes and recyclable materials, making them ideal for businesses that require both protection and a professional finish when parcels reach customers.

Royal Mail Guidelines and Postage Efficiency

A large portion of our postal packaging is designed with Royal Mail guidelines in mind. This helps businesses select the correct sizes for large letter and parcel categories, making postage costs easier to calculate.

By choosing packaging that fits the contents properly, companies can improve efficiency, reduce excess weight and ensure envelopes arrived securely at their destination. Clear sizing information across our range helps customers manage their account, control costs and maintain a reliable postal service across the UK.

Why Buy Postal Packaging from Kite Packaging

At Kite Packaging, we supply a wide range of postal packaging solutions designed to support businesses across the UK. With a large range of boxes, envelopes and mailing products in stock, we help companies order confidently and keep their service running smoothly.