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Custom Mailer Boxes

from £8.99

  • Alternate Text Medium mailer (32.5 x 12 x 1.2cm)
  • Alternate Text Perfect for a folded T-shirt
  • Alternate Text Recycled FSC-certified
  • Alternate Text Eco-friendly materials
  • Alternate Text Flat pack design: easy to assemble
  • Alternate Text Wholesale discounts, with no minimum order
  • Alternate Text Quick worldwide delivery
  • Alternate Text Sustainably made in the UK
Alternate Text Ships in 1 - 2 days . UK delivery from £5.99 Delivery options

Explore our

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Wholesale and student discount from no minimum to bulk orders

View discounts
SwatchPack

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Product Description

customised mailer boxes

Take your product branding to the next level with our innovative Envelope Box, the perfect solution for your mailing and presentation needs. Designed with convenience in mind, this custom mailer box is ideal for showcasing and delivering folded t-shirts or similar sized products in style. Fully customisable and made from lightweight cardboard, our custom mailer boxes allow you to print your unique designs or logos, aligning the product seamlessly with your brand. Featuring an all-over print for a unique touch, and delivered flat-packed for easy assembly. Simply fold, peel off the tape on the strip, and assemble effortlessly. Our custom mailer boxes are not only visually appealing but also eco-friendly, crafted from recycled FSC-certified materials and fully recyclable. 

Product size chart

You can then use the conversion size chart below to find the best fit based on your measurements.

Conversion size chart

centimeter / inch
Size Width Height Depth
Medium Mailer 32.5cm 12.8" 23cm 9" 1.5cm 0.6"

Care instructions

Surface wipe only. Clean gently by hand with mild soapy damp cloth.

  • Wipe Down
  • No Soak

How it works

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Upload your design

We automatically apply your design to the product you selected

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Make it perfect

Use our smart tools to get it exactly right and select the finishing options

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Preview & checkout

Confirm your designs with our 3D previews and checkout with confidence

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1-2 Days Production

Sit back and relax. Your product is on its way!

How our pricing works

Our pricing is based on the quantity and dimensions of the products you order. The more you order, the better price you’ll get. We also offer lower pricing for larger dimensions, students, and wholesalers.

We offer discounts

We offer discounts on all our products, including bulk, quantity and student discounts. Enjoy great deals whether you're a small business, designer, or student.

Volume discount Wholesale Students
Based on Quantity Up to 44% Up to 0%
Discounts

Discount available. Price by selecting dimensions & quantity.

Find out more Find out more

Delivery time & costs

Custom Mailer Boxes

from £8.99

  • Alternate Text Medium mailer (32.5 x 12 x 1.2cm)
  • Alternate Text Perfect for a folded T-shirt
  • Alternate Text Recycled FSC-certified
  • Alternate Text Eco-friendly materials
  • Alternate Text Flat pack design: easy to assemble
  • Alternate Text Wholesale discounts, with no minimum order
  • Alternate Text Quick worldwide delivery
  • Alternate Text Sustainably made in the UK
Alternate Text Ships in 1 - 2 days . UK delivery from £5.99 Delivery options

Explore our

imageExclusive

Wholesale and student discount from no minimum to bulk orders

View discounts
SwatchPack

Check our gift cards, the perfect gift for you loved ones.

Order a gift card

Help

Alternate Text More details

About Your Custom Mailer Boxes

Discover the perfect fusion of form and function with our personalised mailer boxes. Tailored to meet your unique requirements, these custom envelope boxes are a testament to quality craftsmanship. Whether you're looking for customised solutions, printed designs, or a touch of personalisation, we have the expertise to turn your vision into reality.

Elevate your brand's presentation with our garment packaging solutions. Whether you manage an online store or a retail space, our custom envelope box is designed specifically for creators of garments such as t-shirts or similar-sized products to enhance the unboxing experience and the brand's identity.

Design Your Custom Mailer Boxes

Unleash your creativity with our "Design Your Own Mailer Boxes" feature. We put the power in your hands, allowing you to create packaging that resonates with your brand identity. From selecting materials and sizes to incorporating your logo and artwork, our intuitive design tool ensures a seamless and enjoyable customisation process.

We use advanced printing technologies to transfer your designs onto the flat sheets of custom mailer boxes. Our printing methods ensure vibrant colours, sharp details, and precise image reproduction. Once the printing is complete, the sheets are precisely cut and creased according to the selected box size.

HOW DOES THIS PRODUCT ENHANCE MY...

Home

Custom mailer boxes can elevate your home in various ways. Use them to organise your belongings in a stylish and personalised manner. Custom printed mailer boxes also make for thoughtful, personalised gifts for loved ones.

Business

Custom packaging is a powerful marketing tool for businesses. With Custom printed mailer boxes, you can reinforce your brand identity and create a memorable unboxing experience for your customers. This can lead to increased brand recognition, customer loyalty, and positive word-of-mouth. Professionally branded packaging sets your business apart from competitors and shows your commitment to quality.

Design Brand

If you're a designer, these products become a canvas for your creativity. Personalised mailer boxes allow you to showcase your design skills and unique style. Whether you're packaging your products or offering design services to others, these personalised packaging solutions serve as a tangible representation of your design brand.

Alternate Text Print guidelines & finishing

Print Guideline

  • DPI-Print Guideline Icon

    What's the best resolution to print in?

    We print at 200dpi, which is a good combination of quality and file weight. Ideally, your image should be scaled to 100% at 200dpi, this means that no resizing of your file occurs stopping any interpolation.

  • Jpeg-Tiff Print Guideline Icon

    Should I save my file as a TIFF or JPEG?

    For multi-coloured or very detailed files we recommend using a tiff format, but they must be flattened. For simple colours and low detail files, a jpeg is fine.

  • RGB-CMYK Print Guideline Icon

    Which colour model should I choose? RGB or CMYK?

    We advise providing images in the RGB colour space. Specifically using the sRGB image profile, to achieve best colour results. What does this mean? In your editing software choose RGB as the working space, and assign the image profile as sRGB (full name sRGB IEC61966-2.1)

  • GSM ICON

    What does GSM mean?

    Grams per Square Meter (GSM) is an international standard for measuring the weight of paper or fabric. GSM uses the weight of a square meter (1000 x 1000mm) as an indication of the weight and thickness of a given fabric. We class 20-100gsm as light (summer fabrics, gauzes and fine silks), 101-249 gsm as medium (most clothing fabrics) and 250+ gsm as heavy (upholstery fabrics, and other specialist fabrics).

  • Fill Bleed Areas ICON

    What are the bleed areas?

    When designing your product, it’s best to make sure that your image is slightly larger than needed. In printing, the extra printed image is referred to as a “Bleed Area” or margin, and it is removed from the finished piece. A bleed area acts as a buffer for slight inconsistencies in the manufacturing process. however, it’s important to fill your bleed areas completely, or you may end up with white, unprinted strips along the edge of your finished product.

  • Transfer-Print Guideline Icon

    Do you print on garments a customer supplies?

    Unfortunately not. All our garments are printed on flat fabric and sewn into finished products, which gives a better, finished result and all-over print. We test meticulously so that we know what gets the best results on our fabrics, and our facilities cater perfectly to them. We do however print sublimation paper to order, so if you have access to a heat press you can press your fabrics or flat garments easily.

  • Pattern Alignment Across Seams ICON

    Can you Align a Pattern or design across panels of a garment?

    We always strive for the greatest accuracy when printing and constructing your garments. However, due to unavoidable stretch or movement of the fabric during the stitching process, we cannot guarantee perfect pattern registration across garment seams. We are generally accurate within 2-3mm, which Is close enough for most patterns but may show slight issues with detailed geometric patterns.

  • print label option icon

    Can I print my own Labels?

    Most of our garments now come with printable label space for you to add your own company information and branding! If you would like to sew in your own labels, we also offer Printed Fabric Labels here.

  • Eco friendly Printing

    How is your fabric printing eco-friendly?

    With environmental consciousness in mind, our fabrics are all printed using completely water-based inks. This means no chemicals or solvents are used. Our heat fixing procedure fixes the colours and prints, avoiding the downsides of steaming, such as excess or contaminated water returning into the waste system. We have one facility in London where we conduct all the printing, production and fulfillment.

Please note: As everything we provide is handmade to order, all measurements may vary slightly.
Alternate Text FAQ

How can I customise the mailer boxes to align with my brand?

Our mailer boxes are fully customisable, allowing you to print unique designs, logos and incorporate your brand identity seamlessly.

Are the materials used for custom made mailer boxes eco-friendly?

Yes, we are committed to sustainability. We use eco-friendly materials for custom mailer boxes, ensuring that your packaging is not only attractive but also environmentally responsible.

Can I get a sample before placing a bulk order?

Yes, Create as many or as few as you like with great wholesale discounts and no minimum orders.

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