Custom Kraft Mailer Boxes

Custom kraft mailer boxes offer an eco-friendly, durable, and visually appealing packaging solution ideal for eCommerce businesses, subscription services, and product shipments. These boxes are both sustainable made from high-strength, recycled kraft paperboard. At The Product Boxes UK, we create bulk mailer boxes tailored to your exact specifications. Whether you need a sleek natural finish or custom-printed branding, we offer full design flexibility including logo placement, bold typography, and optional add-ons like spot UV, inside printing, or die-cut windows.

These eco-friendly mailer boxes are available in various sizes and structures to accommodate apparel, cosmetics, electronics, books, and more. Beyond appearance, custom printed kraft boxes are designed for efficiency, they’re lightweight, easy to assemble, and ship flat to save storage space. For brands looking to reduce their environmental footprint while maintaining high-quality presentation. We deliver the perfect balance of style, sustainability, and function. Impress your customers with packaging that’s as thoughtful as the product inside.

Size : [Change Size]

Select Quantity:

Print Colors:

Unit Price : £0.49 for 1000

Available in Stock

Eco-Friendly Custom Kraft Mailer Boxes for Retail, Subscription & E-Commerce Brands

Make a lasting impression with custom kraft mailer boxes that reflect your brand’s identity while prioritising sustainability and durability. The Product Boxes UK designs packaging solutions according to your exact needs. Whether you’re shipping delicate accessories, premium cosmetics, clothing, or artisan goods. These boxes not only protect your products during transit but also offer a memorable unboxing experience that sets you apart from the competition. Our bespoke mailer boxes are ideal for both small businesses and large-scale operations looking to deliver quality with a green promise.

Common Types of Brown Cardboard Mailers We Offer Are:

We offer a wide range of brown cardboard mailers crafted to match your product’s size, weight, and delivery method:

  • Tuck Top Kraft Mailers
  • Self-Sealing Kraft Mailers
  • Corrugated Kraft Mailer Boxes
  • Custom Die-Cut Kraft Boxes

Tuck Top Kraft Mailers

are lightweight and compact. These mailers feature a top flap that tucks into the box to secure contents. Ideal for shipping soft goods like t-shirts, notebooks, and promotional materials.

Self-Sealing Kraft Mailers

are designed for efficiency and convenience. Commonly used in eCommerce for direct-to-customer orders, they reduce packing time significantly. Corrugated Kraft Mailer Boxes are built with a fluted interior layer. These boxes are perfect for heavy, breakable, or high-value items like glassware, electronics, and jars.

Custom Die-Cut Kraft Boxes

offer unmatched branding flexibility. Whether you need a heart-shaped box, a unique lock tab style, or compartments for multiple products, these are engineered for maximum impact and product fit. 

All our mailers are manufactured with precision die-cutting for perfect structure and foldability, ensuring every box arrives flat-packed, ready for quick assembly and packing.

Premium Customisation Techniques Are Used For Kraft Mailers

We use a variety of customisation techniques to make your custom kraft boxes truly stand out:

  • Offset Printing 
  • Hot Foil Stamping
  • Debossing & Embossing 
  • Spot UV Coating 
  • Die-Cutting 

These techniques help elevate the visual appeal of your packaging while making your branding more memorable.

Sustainable Mailer Packaging Solutions At Their Best

Our sustainable mailer packaging is manufactured using responsibly sourced kraft materials and eco-conscious production processes. These boxes are 100% recyclable, biodegradable, and printed with water- or soy-based inks to minimise your environmental footprint. Whether you’re a green-conscious brand or transitioning to sustainable operations, our kraft mailers help you make that move without compromising aesthetics or performance.

Enjoy Free Logo Design for Startups

We understand that starting a business comes with many challenges; branding shouldn’t be one of them. That’s why The Product Boxes UK offers free logo design services exclusively tailored for startups and small businesses placing low minimum quantity orders. Our experienced design team works closely with you to craft a brand identity that resonates with your target audience and fits perfectly on your packaging.

Whether you have a rough concept, an existing sketch, or need a complete design from scratch, we turn your ideas into production-ready artwork. You’ll receive:

  • Professional logo design consultation
  • Multiple design options for feedback
  • High-resolution print-ready files
  • Guidance on size, placement, and color compatibility with kraft substrates

We believe great packaging starts with great branding and we’re here to help you launch with confidence, even on a limited budget.

Our Add-On Options for Enhanced Unboxing

Once your boxes are customised, we offer a wide range of add-on features to elevate your packaging:

  • Branded stickers and tissue papers
  • Printed packing tapes
  • Custom dividers and product inserts
  • Decorative ribbons 
  • Thank-you cards
  • Kraft belly bands or sleeves
  • Inside printing 
  • Custom-sized foam padding 
  • Magnetic closures 

These add-ons turn simple boxes into premium experiences,  perfect for subscription brands, retail displays, or influencer packaging.

Your Packaging, Your Prize – We Deliver the Win!

Our eco-friendly mailer boxes are priced to help you compete without cutting corners. Whether you’re ordering small runs or large batches, we offer flexible pricing structures, fast turnaround, and full customisation support, all while maintaining top-quality standards.

Step up your brand game with premium custom kraft mailer boxes made from high-quality, eco-friendly materials. At The Product Boxes UK, we offer:

  • Fast Turnaround Times
  • 24/7 Customer Support
  • Free Logo Design for Startups
  • Affordable Prices on Bulk Orders

Whether you’re chasing big prizes or big impressions, we’ve got your packaging covered. Let’s build something bold together.

Type Specification
Product Category Custom Kraft Mailer Boxes
Material Type Corrugated Kraft (B-Flute, E-Flute, F-Flute)
Board Color Natural Brown Kraft / White Kraft Liner Optional
Box Style Roll End Tuck Front (RETF) with Dust Flaps & Locking Tabs
Printing Options Flexo, Digital, or Offset Printing — Inside & Outside
Logo Finishing Black Ink, White Ink, Full Color, Deboss or Spot UV
Color Print 1–4 Spot Colors or CMYK — Eco Soy-Based Inks
Surface Coating Uncoated Kraft / Matte Varnish / Anti-Scuff Laminate
Box Strength ECT-32 / 200# Test Kraft Board
Size Range Custom — Fits Small Items to Apparel & Subscription Kits
Popular Sizes 7x5x2”, 9x6x3”, 12x9x4”, 14x10x4” — or Custom
Custom Inserts Corrugated, Pulp, Foam, Die-Cut Kraft Holder Inserts
Closure Type Self-Locking Tabs (No Tape Needed) or Peel-&-Seal Strip
Weight Capacity Supports 1–7 kg depending on flute and size
Quantity Options 100, 250, 500, 1,000, 2,000+
Applications E-commerce, Clothing, Subscription Boxes, Eco Packaging
Eco Features 100% Recyclable, Biodegradable, FSC-Certified Kraft
Delivery Format Ships Flat — Easy to Fold & Assemble
Optional Add-Ons Perforation, QR Code, Custom Print Inside Flaps, Tear Strip
Turnaround Time 7–10 business days after final design approval

Q. What thickness is used for custom kraft mailer boxes?

A. Custom kraft mailer boxes are typically made from E-flute corrugated board, offering a thickness of about 1.2–1.8mm. For heavier contents, B-flute or double-wall kraft can be used for added durability.

Q. Are kraft mailer boxes strong enough for shipping?

A. Yes, kraft mailers are designed for strength and structural integrity. Their corrugated build resists crushing during transit and protects contents without needing external packaging.

Q. Can I print logos and designs on kraft mailer boxes?

A. Absolutely. You can print custom logos, artwork, or messages using screen printing, digital print, or flexographic methods. White ink or bold black designs contrast well against natural kraft.

Q. Are kraft mailers eco-friendly and recyclable?

A. Yes, kraft mailer boxes are 100% recyclable and biodegradable. They’re made from unbleached natural paper, often with post-consumer recycled content, ideal for eco-conscious brands.

Q. What sizes are available for custom kraft mailer boxes?

A. Sizes can be fully customized based on your product dimensions. Standard mailer sizes range from 6″ x 4″ x 2″ for small items to 12″ x 9″ x 4″ for apparel, books, or product kits.

Q. Can kraft mailers be ordered with inserts or dividers?

A. Yes, custom inserts such as kraft partitions, die-cut holders, or eco-friendly molded pulp can be added to keep items secure and presented neatly inside the mailer.

Q. Do these boxes close securely without tape?

A. Kraft mailers typically include a self-locking tab system or front tuck flap, so no tape or glue is needed for closure. This keeps packaging neat and reduces materials used.

Q. Are kraft mailers suitable for subscription box packaging?

A. Yes, they’re a popular choice for subscription boxes due to their unboxing appeal, print options, and eco-friendly look. They’re also durable enough to ship directly without extra cartons.

Q. Can I order kraft mailer boxes with white interior or dual-color design?

A. Yes, you can choose kraft outside with white interior or vice versa. Dual-color combinations enhance branding while still keeping the natural kraft aesthetic on one side.

Q. What is the usual production time for custom kraft mailer boxes?

A. Production typically takes 8–12 business days after final artwork approval. Add-ons like inserts, foil stamping, or large-volume runs may slightly extend the lead time.
Scroll to Top