Cardboard Envelope Oyster

• Sophisticated and unique design for a great unboxing experience
• High protection and versatility for products
• All-in-one packaging: with two sealing strips, top and bottom; and easy-opening strip

From: £0.62
In stock
Only %1 left
320 x 400 x 100 mm - COB002
450 x 355 x 100 mm - COB001
* Request your bespoke size or request a quote for a larger quantity
Amount: 1 units
Free delivery over £100 *
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  • Cut-off time 3 pm
  • Free delivery over £150 *
  • 30 Days Returns

* Please refer to our delivery policy page. For any queries please contact us.

Cardboard Envelope Oyster Product Details

The new Oyster Cardboard Envelope is a DS Smith ePack exclusive design specifically developed for clothing, accessories and jewellery.  Its carefully designed shape is an added value of this exclusive premium product. We are sure you won't find anything like it on the market. It's time to impress your customers with an innovative premium packaging solution.

The way that nature acquires shapes to protect itself has been considered in its creation. Its concave design mimicking an oyster - hence its name - prevents surplus space inside the envelope and allows greater adaptability to the product.

By adapting comfortably to the content in a variety of ways to occupy the smallest space possible, it is a versatile and cost-effective solution for the e-commerce supply chain.

The pack comes with a practical adhesive strip for closure and has an easy-opening strip for an excellent consumer experience. Furthermore, its secure sealing design prevents unauthorised opening, handling or theft.

An iconic fibre based hybrid pack, new to the market, with a strong sense for sustainability.  Your packaging is the first physical contact between your company and your customers, and that’s why it's very important to choose an option that offers an improved fill rate versus a box, better protection versus a mailer, a fashionable appearance and delivers a fully recyclable promise. For this reason, the Cardboard Envelope Oyster from DS Smith ePack offers an excellent presentation pack with which to highlight your brand value through incredible innovative design.

Your customers and the planet will love this revolutionary envelope. It is 100% environmentally friendly by being made of recycled materials to guarantee sustainable consumption.

Recommended for

  • Manufacturers and distributors of fashion items will particularly appreciate the adaptability and unique shape of this packaging solution that can protect their products by optimising the volume of packages, as well as surprising their customers.


  • Envelope thickness of 3 mm with brown cardboard recycled paper quality up to 100gsm

  • Includes an adhesive tape for closure and a tear strip for easy opening

  • All dimensions shown are internal dimensions

  • Those products are not designed to be used for heavy-duty products unless stated otherwise, not to be used under high humidity or high temperatures conditions

Main Characteristics

The Cardboard Envelope Oyster is particularly noteworthy for combining the rigidity of a standard cardboard box with the flexibility of paper envelopes. An unparalleled solution, as well as an original one.


It adapts in the best way possible to the content, regardless of its structure

  • Made of corrugated rigid cardboard, it protects the product better than an envelope and can withstand the habitual knocks and bumps of the e-commerce supply chain

  • It has an attractive, iconic and elegant design that surprises the recipient

  • As it is more ergonomic, the risk of falls is reduced

  • It consists of 100% recyclable sustainable materials

And all this in one product.

Available sizes

It comes in two sizes for greater adaptability:

Large Oyster: 450 x 355 x 100 mm
Medium Oyster: 320 x 400 x 100 mm

Would you like to customize it or do you need a larger quantity?

For more information or to request a quote, please send us an email at

How to measure a box?

When measuring a cardboard box, it is important to consider three key dimensions: length, width and height. These measurements provide the internal dimensions of the carton, allowing you to define the space available to pack products and ensure they fit properly.

The dimensions provided on our website are in Millimetres and are following the order LENGTH x WIDTH X HEIGHT.

To measure correctly a cardboard box follow these instructions:

1. Length: start by measuring the longest side of the box base

2. Width: rotate the box 90 degres and measured the other side of the box base

3. Height:measure the distance from the base to the top

How to easily assemble your Cardboard Envelope Oyster?


A few steps and folds are sufficient to have the envelope fully assembled.

1. You will receive your Oyster as seen in the image.

2. The envelope takes on the oyster shape by flattening one end.

3. Remove the adhesive tape from the bottom and glue the flap.

4. Place your product inside and seal it with the adhesive strip and you're ready!

What makes ePack sustainabile?

In today's society, sustainability has become a key focus. Consumers who are conscious about the environment are demanding eco-friendly packaging solutions. DS Smith ePack offers packaging solutions that are 100% eco-friendly, using fibres from responsible sources to combat deforestation. They use recycled or virgin paper from a certified chain of custody, and their corrugated cardboard packaging is both recyclable and biodegradable.

DS Smith ePack prioritizes sustainability by using responsible sources, recycled or virgin paper, and recyclable and biodegradable materials. Consumers consider sustainability as a crucial factor in their purchasing decisions, and non-sustainable packaging can lead to negative consequences for companies. Eco-friendly packaging not only benefits the environment but also improves brand image and reduces the carbon footprint.

What does FSC label means?

FSC (Forest Stewardship Council) labelled paper is an important choice for individuals and businesses looking to prioritize sustainability and responsible forest management. Using FSC labeled paper offers numerous benefits. It supports responsible forest management, reduces environmental impacts, promotes social responsibility, meets consumer demand for sustainable products, and ensures compliance with regulations and standards. By choosing FSC labeled paper, individuals and businesses can make a positive impact on the environment and contribute to a more sustainable future.

Postal Guide

One of the easiest ways to derive the maximum benefit from your deliveries is to use the postal option that is most closely tailored to your product and that aligns perfectly with the standards, dimensions and weights stipulated by the Royal Mail, ensuring you keep prices as low as possible for you and your customers and reducing difficulties with delays and damaged packages. This allows your business to keep the processing of orders and shipping as streamlined as possible, saving you time and money.

Letter Large letter Small parcel Medium parcel Large parcel
Maximum length 240 mm 353 mm 450 mm 610 mm > 610 mm
Maximum width 165 mm 250 mm 350 mm 460 mm > 460 mm
Maximum height 5 mm 25 mm 160 mm 460 mm > 460 mm
Maximum weight 100 g 750 g 2 kg 20 kg 30 kg

Epack offers a full range of Royal Mail-compliant envelopes and parcels for all your delivery needs, including two envelope types and three parcel types.

The letter and large letter envelopes can take weights of up to 750 grams, making them ideal for greeting cards, folded and unfolded letters, magazines and small objects such as DVDs or plastic cards. By using the standard Royal Mail dimensions, you ensure that your shipping costs as little as possible, is less likely to experience delays, and will fit standard mail slots in the UK, minimising delivery problems and the administrative burden of lost and damaged packages. The two different sizes allow you to tailor your packaging to the letter content, allowing you to minimise costs for simple document shipping with standard letters.

Royal Mail parcels come in three sizes – small, medium and large – and can accommodate items from 2 kg up to 30 kg. Whether your company specialises in clothing, electronics or games and entertainment, any potential product offered by your business will find the perfect parcel type to match and provide the necessary size and weight capacity to ensure smooth and safe delivery with adequate protective packaging.


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