Grey Mailing Bags 10×14" (254×355 mm) – A4-friendly, fast to pack, built for daily dispatch

Grey mailing bags 10×14" (254×355 mm) are one of the UK’s most in-demand sizes for e-commerce. They fit A4 items with room, make quick work of apparel orders, and keep postage weights low. Made from tough 60-micron LDPE, these self-seal postal bags are water-resistant and opaque for privacy. The peel-and-seal strip closes in seconds, helping busy packing benches maintain speed without sacrificing protection.

Why this 10×14" size is a best-seller

Sitting just above A4, 10×14" gives you enough spare room for a folded garment, a brochure pack, or an A4 folder with inserts—without tipping parcels into heavier weight bands. The neutral grey finish looks tidy and professional; it hides contents and minimises scuffs in transit. When packed sensibly, this footprint often suits common small-parcel services, making it a dependable everyday choice across fashion, lifestyle and stationery categories.

Who it’s ideal for

• Apparel & merch: T-shirts, leggings, single lightweight jumpers, gym tops, kids’ clothing.
• Books & print: A4 brochures, photo books in sleeves, catalogues, planners, diaries.
• Beauty & accessories: boxed cosmetics, small gift sets, belts, caps, scarves.
• Stationery & craft: A4 pads, folders, pattern packs, small kits and components.
• Marketplace sellers: fast, clean packaging for high-turnover A4 orders.

Fit & packing guidance (choose the right size first time)

• Best fit: single tee, thin knit, A4 book with a sleeve, boxed cosmetics, stationery bundles.
• If it’s bulky: jumpers or stacked apparel may fit better in 12×16".
• If it’s slim: for document-only or very small apparel, try 9×12" to remove void space.
• Corner care: add a light wrap to inner boxes to reduce punctures at sharp edges.
• Flatten air: press out trapped air before sealing so labels sit flat and parcels stack neatly.

Key benefits

• Self-seal, tamper-evident closure for rapid packing and fewer tape rolls.
• 60-micron film helps resist tears and punctures through conveyors and cage moves.
• Water-resistant outer adds protection against rain and splashes in transit.
• Opaque grey keeps contents private and presents a clean, uniform look.
• Lightweight versus boxes—save on postage, store more packs in less space.
• Recyclable LDPE — please remove the glue strip before recycling.

Specifications

Strength, protection and presentation

The 60-micron film gives real-world durability without unnecessary weight. It helps protect against split seams and scuffed corners, and it holds shape through sorting machinery. The self-seal strip bonds fast so you can pack at pace, and the water-resistant outer adds confidence for doorstep deliveries in wet weather. The opaque grey finish supports privacy and a consistent branded look across your parcels.

Eco information

These mailing bags are made from LDPE and are recyclable in many UK schemes; remove the adhesive strip first. If you need recycled-content film or paper alternatives for certain products, explore our full Mailing Bags collection to compare options.

Size comparison (pick the best fit for each order)

If your orders vary, keep 9×12" for slim items and 12×16" for bulkier picks. You’ll save postage and reduce re-packing.

Packing tips to save time and reduce damages

• Use a light inner sleeve for dusty or powder-prone items.
• Fold garments flat; avoid hard creases that create sharp corners.
• Apply labels on a smooth, clean area; press firmly for reliable scanning.
• Add invoices/returns in a clear document wallet on the outside.

FAQs

Does 10×14" fit A4?

Yes. It’s above A4 (210×297 mm) and leaves room for sleeves or a folded tee.

Are these bags waterproof?

They’re water-resistant and help protect against rain and splashes. For very wet routes, add an inner sleeve.

Are they recyclable?

Yes. They are LDPE and recyclable in many UK schemes. Remove the glue strip first.

Do you offer bulk packs?

Yes. Larger pack sizes reduce the cost per bag. Keep 9×12", 10×14" and 12×16" on hand so staff can pick the best fit.

Build a complete packing setup

Team your grey mailing bags 10×14" with packaging tape for any inner cartons, document wallets for paperwork, and cardboard boxes when rigid protection is needed. For more colours and sizes, see the full Mailing Bags collection.