Sleeved Mailer Boxes UK | Custom Printed

About our box

Sleeved Mailer Boxes, made to your size

A sleeve adds a layer of theatre. Our sleeved mailer boxes pair a mailer with a printed outer sleeve, or belly band, that slides off before the lid is opened. It feels premium and gives you an extra surface for product names, flavours or seasonal messages.

Why choose our sleeved Mailer Boxes

Sleeves are also practical. Use one plain or branded mailer for every product and change only the sleeve, which keeps stock simple and lets you launch new variants or seasonal editions cheaply.

Popular uses

Product ranges with several variants
Seasonal and limited editions
Premium gifting
Subscription boxes
Cosmetics and fragrance

Materials, print and finishes

Printed sleeve or belly band
Plain or branded mailer underneath
Different sleeves per product
Foil and spot UV on the sleeve

Order one mailer design and several sleeve designs together and we will quote them as one order.

Sizes and dimensions

Every order of sleeved Mailer Boxes is made to your dimensions in millimetres (length × width × height). Not sure of the size? Choose “Not sure — suggest a size” in the options above and tell us what you are packing, and we will recommend dimensions and show them in your mock-up. You can also order several sizes in the same design to cover your whole range.

Related packaging

Comparing options? Take a look at Luxury Mailer Boxes, Branded Mailer Boxes and PR Mailer Boxes, or browse all custom mailer boxes and our wider custom packaging range.

How to order

Choose your size and options above and request a free quote. We reply within 24 hours with your price and a free 3D mock-up, and nothing is printed until you approve it. Orders are delivered across the UK in 12–14 working days; see our delivery information. The “From” price is our bulk price per unit, excluding VAT, and larger quantities bring the unit price down. Selling clothing too? We also make custom apparel to ship in your boxes.

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Specifications

Sleeve	Printed card sleeve or belly band
Style	Self-locking mailer, tape-free
Board	Kraft or white corrugated (E-flute or B-flute)
Print	CMYK and Pantone, outside, inside or both
Finishes	Matte, gloss or soft-touch; foil, spot UV, embossing
Size	Made to your inside dimensions (mm)
Recyclable	Yes, with UK paper and card recycling
Minimum order	250 boxes
Delivery	12–14 working days after approval, UK-wide
Category	Custom Mailer Boxes

New · Custom Apparel

Fill your boxes with your own merch

Hoodies, tees, sets, caps and socks — cut and sewn to your design from 20 pieces per style, packed in your boxes and delivered together.

Explore custom apparel

How it works

Tell us your box
Size, print and quantity — or ask us to suggest a size.
Free 3D mock-up
See your design on the box before anything prints.
We print and make
Printed, die-cut and quality checked.
Delivered flat
Tracked UK delivery in 12–14 working days.

Questions about Sleeved Mailer Boxes

Can I use different sleeves with the same box?

Yes. That is one of the main benefits. One mailer, many sleeves.

Is the sleeve strong enough to post?

Sleeves are usually posted on the box inside an outer shipper, or the box is posted with the sleeve held in place by a sticker.

How much do sleeved mailer boxes cost?

The “From” price on this page is our bulk price per unit, excluding VAT. Your exact price depends on size, quantity, print and finish, and we send it with a free mock-up within 24 hours.

How long does delivery take?

12–14 working days after you approve your mock-up, with tracked delivery anywhere in the UK.