Padded Envelopes

RAJA UK's padded envelopes are built for e-commerce despatch teams, post rooms and small businesses posting through Royal Mail or a courier. Every option in this range is paper-based and plastic-free and aid any sustainability goals. Honeycomb, wave paper and expanding recycled fibre linings all cushion products against knocks and drops, so lightweight and fragile items arrive exactly as they left your warehouse.

Whether you're shipping small parcels, A4 documents or heavier bulk orders, our range spans small padded envelopes through to large padded envelopes, each with a peel and seal strip for fast, secure closure and a smooth outer surface ready for labels or handwriting.

Our range covers:

• Kraft Jiffy Green bags - a 90gsm recycled Kraft outer with 100% recycled paper fibre that expands with use. Ten sizes from 105 x 229mm to 442 x 661mm (internal opening x internal height) cover large letter through to large parcel formats.
• AirPro Green padded paper mailers - three layers of 100% paper with an embossed bubble-pattern inner, they’re FSC certified, plastic-free and fully recyclable. Five sizes run from 150 x 215mm to 350 x 470mm (internal opening x internal height), including 230 x 340mm for A4 padded envelopes.
• Wave bag padded envelopes - two layers of fully recyclable paper give this padded mailer a 70gsm water-resistant outer over 45gsm wave paper padding, in brown or white. Four sizes available from 150 x 207.5mm to 270 x 360mm (internal opening x internal height).
• Honeycomb padded mailers - an 80gsm honeycomb paper cushioning layer makes it 100% plastic-free, with 80% recycled content, FSC-certified paper and a tamper-evident peel and seal strip. Ten sizes available from 105 x 229mm up to 440 x 650mm (internal opening x internal height).

Key features & Benefits:

• Cushion products against damage - honeycomb, wave paper and expanding fibre linings absorb shocks throughout transit, protecting fragile and lightweight items in the post.
• Handle heavier items with confidence - macerated fibre padding expands with use, so our padded mailing bags and envelopes take bulkier orders without splitting.
• Recycle in one stream - with no plastic bubble film to separate, these paper mailers go into kerbside paper and card recycling in one piece.
• Seal and despatch quickly - a peel and seal strip closes each envelope securely without tape, keeping high-volume despatch moving.
• Write or label with ease - a smooth outer surface is ready for shipping labels or document-enclosed wallets, or simply write the address by hand.
• Choose the right size every time - from small padded envelopes for jewellery to A5 and large padded envelopes for bulkier orders, we stock sizes to suit every parcel.
• Evidence your sustainability claims - FSC-certified papers and recycled content from 80% up to a 100% recycled paper fibre lining give procurement teams something concrete to report.

Choosing the right padded envelopes

When choosing between our paper mailing options, consider:

• Item size and weight - measure your item and choose a size with a little clearance; heavier or bulkier orders may suit a large padded envelope or padded mailing bag instead.
• Level of protection needed - honeycomb and multi-layer paper linings give the most cushioning for fragile goods, while a single expanding fibre lining suits robust flat items. If you specifically need a plastic bubble lining, browse our bubble envelopes
• Certification requirements - choose FSC-certified AirPro Green or honeycomb mailers where certified fibre sourcing must be evidenced for customers.
• Despatch volume - high-volume post rooms benefit from peel and seal closures that seal envelopes quickly without tape.

For example:

• Kraft Jiffy Green mailers suit A4 documents and heavier, bulkier parcels needing an expanding fibre lining.
• AirPro Green mailers suit fragile goods that need multi-layer cushioning in fully recyclable paper.
• Wave bag paper mailers suit lightweight, flat items where a water-resistant outer helps.
• Honeycomb padded options suit valuables and confidential contents, thanks to a tamper-evident peel and seal strip; for multi-item orders, mailing bags offer more capacity.

FAQs

What padded envelope sizes does RAJA stock?

RAJA UK stocks padded envelopes in a range of sizes to suit different items. Small padded envelopes are ideal for jewellery and other small items, while the A5 padded envelope and A4 padded envelopes suit documents and paperwork. For bulkier orders, choose from our large padded envelopes. Match your item to the nearest size, allowing a little extra room to seal it securely.

What's the difference between a padded envelope and a padded mailer?

Padded envelopes and padded mailer are used interchangeably in the UK to describe an envelope with a protective lining. RAJA UK's padded mailers are all paper based, using expanding recycled fibre, honeycomb or wave paper linings rather than plastic bubble film.

Can a padded envelope be posted through Royal Mail or a courier?

Yes. They're widely accepted by Royal Mail and courier services but always check your chosen service's current size and weight limits, such as the large letter or small parcel formats, before selecting a size.

Is RAJA's padded envelope range recyclable and plastic-free?

Yes. Every option in this range is made from paper and free from plastic bubble film, so it can go into paper and card recycling in one piece. The AirPro Green mailers and honeycomb options use FSC-certified paper, and recycled content runs from 80% up to a 100% recycled paper fibre lining in the Kraft Jiffy Green bags.

Which option is best for fragile items like CDs and photographs?

Choose a multi-layer paper lining: AirPro Green mailers use three paper layers with an embossed bubble pattern, and the honeycomb padded option adds an 80gsm honeycomb cushioning layer. If you would rather use a traditional plastic bubble lining, opt for our selection of bubble alternatives.

Can a padded mailer handle heavy or bulky items?

Yes, to a point. Our padded mailers use macerated fibres that expand and absorb shock, suiting heavier items than a standard envelope; very heavy or oversized orders would be better suited with a box.

Protect and cushion heavier items in the post with RAJA UK

From padded envelopes to cardboard boxes, plastic and paper bags, envelopes and protective packaging, including paper packaging and void fill, RAJA UK has everything you need to ship safely and sustainably. Browse our full product catalogue or contact our packaging experts for tailored advice or bulk order options.