Postal Packaging
Grey mailing bags, Jiffy padded bags, bubble-lined padded envelopes and bubble bags for posting clothing, books, electronics and small goods.
Select Postal Packaging Product Range
10 Sizes AvailableEngineered from puncture-resistant, co-extruded polythene, these mailers provide a total moisture barrier to keep clothing and boxed goods bone-dry in transit. Designed with a high-tack, tamper-evident peel-and-seal strip, they lock tightly instantly to protect your shipments from theft and bad weather while giving your e-commerce brand a clean, professional finish. Features an industrial-strength, self-adhesive permanent seal that cannot be reopened without tearing the bag. Dark silver-grey exterior combined with a black interior lining ensures complete privacy for high-value items. Waterproof polythene material absorbs heavy warehouse scuffs and transit friction without splitting. Ultra-lightweight construction keeps package weight down, dramatically lowering your courier postage fees.
7 Sizes AvailableInstant Shock-Absorbing Protection with Self-Seal Bubble Bags. Providing protection with heavy-duty self-seal bubble bags. Engineered with tightly packed, air-filled bubbles, these pouches act as a defensive shield against shocks, drops, and scratches. Designed with an integrated peel-and-seal adhesive strip, seal, and pack in seconds for a flawless, professional unboxing experience.
10 Sizes AvailableOriginal heavy-duty Jiffy Padded Mailers filled with 100% recycled macerated paper fibres. Provides supreme puncture resistance, edge protection, and tear resistance for heavy industrial parts, metalware, and books.
11 Sizes AvailableHigh-grade white bubble mailers. Ultra-lightweight white Kraft paper shell lined with puncture-resistant air bubble cushioning and permanent tamper-evident peel-and-seal closure.
Buying guides
- Fashion Logistics · 4 min readHow to Ship Clothes: Mailing Bags and Grip Seal BagsShip clothing in two layers: a clear grip seal bag keeps each garment clean and folded, and a grey mailing bag protects the parcel on its way.Read the guide
- Guides · 4 min readRoyal Mail Sizes: Mailing Bags vs Padded EnvelopesRoyal Mail prices by size as well as weight. How grey mailing bags and padded envelopes help keep orders in the cheaper Large Letter size.Read the guide
- Guides · 4 min readBoutique Unboxing on a Budget: Grip Bags and MailersA clear grip seal bag inside a padded envelope keeps small orders clean, dry and presentable, and thin enough for Royal Mail Large Letter prices.Read the guide
Engineering & Material Standards
Rigorous manufacturing specifications & quality controls
25 micron co-extruded film (30 micron on the largest size), grey outside and black inside, so the contents cannot be seen through the bag.
Jiffy padded bags use a macerated paper lining; padded mailing envelopes use an air bubble lining inside white kraft.
Bags made from small air bubble film, for wrapping or posting items that need a layer of cushioning.
Many sizes fit Royal Mail Large Letter or Small Parcel. Our size guides show which band each size falls into.
B2B Trade & Bulk Ordering Benefits
Commercial trade terms, credit facilities & custom runs
Each size lists how many come in a pack, with the price for each quantity band.
Prices drop as you order more packs.
Need a size or print we don't list? Contact us and we'll quote.
Read our guide comparing mailing bags and padded envelopes for Royal Mail sizes.
Looking for custom postal packaging sizing or pallet truckload quotes?
Our 24/7 AI Packaging Specialist and UK sales engineers provide instant calculations.