Customise this product
Envelopes are ideal for sending marketing materials, return slips, product information and more. Choose between stock sizes or create a custom size, and brand on both sides with your logo or artwork.
- Custom printing
- Custom printing
- Double-sided printing
- Closure options available
Select a preset
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Straight flapAn envelope with a rectangular flap. Due to the large glue area, straight flap envelopes are a secure way to send heavier items.
V-flapAn envelope with a triangular flap. The v-shaped flap gives the envelope an elegant finish whilst also securing what’s inside. Ideal for greeting cards or marketing materials.
GummedGummed adhesive requires activation by water contact. Before activation gummed adhesive is not sticky making the envelopes easy to transport and store. To use gummed adhesive, simply activate with water and fold the flap of the envelope down to secure it.
Pressure sensitive adhesiveCommonly used on envelopes packed by a machine. The pressure sensitive adhesive does not need water or heat to activate. To seal, simply fold the flap down.
Single peel & sealOne strip of adhesive covered with a fibre-based backing paper. To seal an envelope with single peel & seal, simply remove the backing paper and fold down the flap.
Double peel & sealTwo strips of adhesive covered with fibre-based backing paper. A double peel & seal makes returns easy for your customers. We recommend a double peel & seal for larger envelopes.
Standard sizesStandard envelope sizes are useful for pairing with cards and are suitable for most needs.
Custom sizingChoose any height and width within the minimum and maximum size range. Custom sizing is great for creating bespoke envelopes, and you can pair them with a custom-sized card. Minimum size: 140x140mm, maximum size: 680x478
White paperFSC certified, bleached paper is made from virgin pulp. White paper is the best choice for printing bold, bright designs or flood printing.
Brown paperFSC certified, unbleached paper made from virgin pulp. Brown paper is more sustainable than white paper as it doesn’t involve the bleaching process. Colours may appear slightly muted because of its brown colour.
White recycled paperFSC certified, this bleached recycled paper is made from recycled paper pulp. It’s more sustainable than using virgin materials but is often more expensive.
Brown recycled paperFSC certified, this paper is made from recycled paper pulp. It’s more sustainable than using virgin materials but is often more expensive.
100gsmOne of the most common envelope thicknesses. 100gsm (standard) envelopes are durable and cost-effective, suitable for shipping documents or smaller brochures.
150gsmA thicker paper stock, 150gsm (premium) envelopes create a more premium feel as well as offering more protection. Ideal for shipping heavier items.
200gsmThe thickest and most durable option. 200gsm (luxury) paper is stiffer than other options so we don’t recommend choosing it for smaller envelope sizes.
Water-based varnishProtects your envelopes from rain and spillages but doesn't make them waterproof. It also prevents the envelope’s colour from fading. A water-based varnish doesn't affect recyclability.
Spot UV varnishSpot UV is a varnish applied to specific areas of a design. Can be applied on top of a printed area or straight on the paper itself. Ideal for highlighting important design elements such as logos and text.
Print tonerUsed for digital printing.
Soy-based inksMade with soy as their primary base, these inks are designed for offset printing. More sustainable than solvent-based inks.
UV inksUV ink is a fast-drying alternative to solvent-based inks. UV ink can be printed on a wide range of materials and creates a vibrant finish. Used in combination with offset printing.
EmbossingEmbossing creates a distinctive, raised effect on the surface of the envelope. Embossing is possible on parts of a design to make specific elements stand out or the entire design. Embossing gives a luxurious finish and is a great option if you want to highlight a part of a design or add texture to a design. Embossing may have additional tooling costs.
DebossingDebossing creates an imprinted effect on the surface of the envelope. Debossing is possible on parts of a design to make specific elements stand out or the entire design. Debossing gives a luxurious finish and is a great option if you want to highlight a part of a design or add texture to a design. Debossing may have additional tooling costs.
4 Pantone colours1 colour printing is the most cost-effective option, whilst 2 colours or more allow for bold, high contrast designs. More than 4 Pantone colours are are available as an RFQ (request for quote).
Full colour printingFull colour printing (CMYK) is ideal for vibrant, multi-coloured designs and images.
Digital printingDigital printing is used for high-quality printing in CMYK colours. It's versatile, offers excellent vibrancy and detail, and is ideal for complex designs, bright colours, text and images.
Offset printingOffset printing is the standard process for high volume, high-quality printing. It's versatile, offers excellent vibrancy and detail, and is ideal for complex designs, bright colours, text and images.
Carton boxesEnvelopes are transported in cardboard carton boxes. Carton boxes remove the need for unnecessary plastic packaging.
Paper strapsEnvelopes are packed in bundles using a paper strap. This keeps them secure and organised in carton boxes..
DomesticAll domestic transit (UK) is handled by road. Products produced domestically are typically dispatched and delivered 24-48 hours after production is complete.
InternationalAll international transit (Asia) is handled by sea freight or courier. Products produced internationally often have a higher carbon footprint impact than domestically produced products, although they’re normally more cost-effective. Products produced internationally are typically in transit for 6-8 weeks.
End of life
Roadside recyclableSourceful envelopes are widely recycled at the roadside, but end-users should always check with their local authority.
Supply chain assurance
A resilient, responsible supply chain
We aim to provide a quote within one working day. Please note that depending on the information you submit, we may need some extra information before we can send you a quote - please provide as much information as possible for faster turnaround.
Envelopes are suitable for a wide range of uses; from sending small soft items and marketing materials to returns slips and product information. With Sourceful, you can create custom-sized envelopes to meet any need.
Yes. You can choose one of the standard sizes below or create a custom size. If you’re creating a custom size, you can use Royal Mail’s guidelines.
DL: 110 x 220mm
DL+: 114 x 229mm
C7: 84 x 114mm
C6: 162 x 114mm
C5: 162 x 229mm
C4: 229 x 324mm
C3: 324 x 458mm
*Dimensions are HxW
Envelope sizes are designed to fit the equivalent paper size. For example, a C4 envelope fits an unfolded A4 size piece of paper. A C5 envelope fits an A5 piece of paper.
A DL envelope is commonly associated with being a letter envelope. It fits an A4 piece of paper folded into thirds.
Standard envelopes are 100gsm. 100gsm is a similar thickness to the envelopes commonly sent via post.
Premium envelopes are 150gsm. These envelopes are thicker and sturdier which gives a more premium feel and provides more protection during transit. We recommend using premium envelopes if you’re shipping items in a large envelope.
Extra premium envelopes are 200gsm. These envelopes are the most durable, but because the paper is relatively stiff, we don't recommend using this thickness for small envelopes.
You can choose full colour printing, which is ideal for vibrant, multi-coloured designs and images, or up to six Pantone colours. You can print on both sides of the envelope.
If you want an envelope in a particular colour, we recommend you choose the white paper option and then add a flood colour to the artwork. Flood printing is the process of printing a colour over the entire surface of a material.
Adding a water-based varnish will protect your envelopes from water damage. Or you can add a UV varnish to create a high gloss, professional finish.
If you need a particular style of envelope that isn’t listed, please select the ‘other’ option in the inquiry form.
If you need a particular paper that isn’t listed, please select the ‘other’ option in the inquiry form.
Lead times vary based on design, cost and the transport option you choose. Typically, envelopes are designed, produced and delivered between one and twelve weeks.
MOQ stands for Minimum Order Quantity. The guideline MOQ is 1,000 units. The exact MOQ will depend on the final approved dimensions of your packaging.