★★★★★
Verified
Your Vision, Our Packaging Perfection
Custom Boxes UK's free design team created exactly what I imagined. "Maybe saved many on a designer!
Mishel K. · Verified · 16 Jun 2026
Rated 4.5 out of 5 based on 95 reviews Trustpilot
In Stock
Mailer Envelope
High-quality mailer envelopes from Custom Boxes UK create sure shipping outcomes for your deliveries. The bubble envelopes we offer provide exceptional protective cover for all delicate items during shipment. The durable bubble mailers maintain merchandise protection and minimise delivery expenses because of their lightweight properties.
The flexible mailer envelopes from our company serve Ecommerce businesses and retail stores as well as corporate customers through customised printing of different envelope sizes. Our padded envelopes provide secure protection and attractive presentation properties for any shipment that ranges from documents to electronics and little fragile items.Your items suffer no damage during delivery because they benefit from the self-sealing adhesive and waterproof design of our custom mailer boxes cheap packaging system. Available in bulk with low MOQ, quick turnaround, and free UK shipping!
Get Your Custom Quote
Send your specs and get professional pricing back within 2 hours on business days.
Product Specifications
| Box style | Mailer Envelope |
|---|---|
| Dimensions | All custom sizes and shapes |
| Minimum quantity | 100 boxes |
| Board | Greyboard 1.5mm – 3mm |
| Wrap stock | 128–157gsm art paper, kraft, or textured |
| Closure | Two concealed neodymium magnets |
| Format | Assembled or collapsible |
| Printing | Offset and digital, CMYK + spot colour |
| Lamination | Matte, gloss, or soft touch |
| Add-on finishes | Spot UV, foil, embossing, debossing |
| Inserts | Foam, EVA, pulp, card — velvet or silk lined |
| Proof | Free digital proof, sample on request |
| Turnaround | 12–15 business days after approval |
| Shipping | Flat rate, tracked |
Customization options
Offset Printing
Digital Printing
Pantone Colors
Soft Touch Lamination
Spot Gloss UV
Hot Foil Printing
Blind Embossing
Window Patching
White Kraft
Natural Brown Kraft
Textured Paper
Grey Chipboard
Frequently asked questions
What is the minimum order for Mailer Envelope?
100 boxes. Per-box pricing drops at 500, 1,000, and 5,000 units, so ask for tiered pricing if you expect to reorder.
How long does an order take?
12–15 business days from approved proof to dispatch. Rush production is available on request for an additional charge.
How long does an order take? Can you help with the design?
Yes. Our design team prepares dielines, sets up your artwork, and produces the proof at no cost, whatever the order size.
Do you provide samples before production?
very order includes a free digital proof. Physical samples of your exact box can be produced on request before the full run.
Which payment methods do you accept?
Credit and debit cards, PayPal, and bank transfer. Larger runs can be split into a deposit and a balance on dispatch.
Are the materials eco-certified?
Boards are FSC-certified, and inks, coatings, and adhesives meet food-contact standards where the box needs it.
Still have a question?
We reply within 2 hours on business days — email us or call your dedicated representative.
Contact our team →
Mailer Envelope
From
$0.10
per box · MOQ 100