Grey Mailing Bags 28×34" (711×864 mm) – Self-Seal Postal Bags
Grey Mailing Bags 28×34" (711×864 mm) – Self-Seal Postal Bags
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Grey Mailing Bags 28×34" (711×864 mm) – extra-long capacity, quick to pack
Grey mailing bags 28×34" (711×864 mm) give added length for curtains, long textiles, oversized pillows and large retail boxes while keeping parcels lightweight. Made from tough 60-micron recycled LDPE, they’re moisture-proof (water-resistant), opaque for privacy, and close fast with a self-seal strip.
Need a different fit? See all sizes or browse the full Mailing Bags range.
Why choose 28×34"?
When 28×30" is wide enough but not quite long enough, 28×34" adds the extra run you need for extra-long textiles, rolled soft goods, and longer boxed kits. If you need more width than length, consider 28×30"; if you need a more balanced large format, try 24×36".
Real use examples (what typically fits)
- Textiles & home: long curtains, drapes, duvet sets, oversized throws, bedding in sleeves.
- Soft goods: extra-long pillows, cushion sets, bulk fabric cuts with an inner wrap.
- Boxed goods: longer retail boxes, kits and components with corner padding.
Fit & packing guidance
- Best fit: extra-long textiles, long soft goods, elongated boxes with padded corners.
- Need more width? Use 28×30".
- Need a smaller large format? Step down to 24×36" or 21×24".
- Corner care: pad inner-box edges to reduce punctures.
- Press out air: flatten before sealing so labels sit flat and sacks/totes stack cleanly.
Key benefits
- Self-seal, tamper-evident closure for rapid packing.
- 60-micron co-extruded film helps resist tears, splits and scuffs.
- Moisture-proof / water-resistant outer for wet routes.
- Opaque grey for privacy and a clean, uniform look.
- Recyclable LDPE — remove the glue strip before recycling.
Specifications
| Spec | Value |
|---|---|
| Size (inches) | 28 × 34" |
| Size (mm) | 711 × 864 mm |
| Thickness | 60 µm |
| Material | LDPE (Low-Density Polyethylene), recycled |
| Closure | Peel-and-seal, tamper-evident |
| Colour | Grey, opaque |
| Water protection | Moisture-proof / water-resistant |
| Recyclability | Recyclable – remove glue strip before recycling |
Eco & Materials
Material: 100% recycled LDPE (resin code 4), co-extruded for strength and opacity. Recyclable in many UK schemes — please remove the adhesive strip first. Not biodegradable or compostable.
Strength & Protection
60-micron film is puncture- and tear-resistant and moisture-proof. The self-seal, tamper-evident adhesive forms a permanent bond once pressed.
Storage & Performance
Store at 13–21 °C and out of direct heat/sunlight. Let cold stock acclimatise before use to maintain adhesive performance.
Lightweight = Lower Postage
Recycled LDPE mailers are exceptionally lightweight, helping you keep parcels in lower weight bands versus boxes.
Size comparison (choose the right bag)
| Size | Inches | Millimetres | Typical fit |
|---|---|---|---|
| Smaller options | 24 × 36" / 21 × 24" | 610 × 914 / 533 × 610 mm | Very large textiles / bulky textiles and boxes |
| Wider (shorter) | 28 × 30" | 711 × 762 mm | Very wide textiles and wide boxed goods |
| This page | 28 × 34" | 711 × 864 mm | Extra-long textiles and longer boxed kits |
Packing tips
- Use a light inner sleeve for dusty items or sharp corners.
- Fold textiles flat; avoid hard creases that create sharp edges.
- Apply labels on a smooth, clean area; press firmly for reliable scanning.
- Add invoices/returns in a clear document wallet outside the bag.
Build a complete packing setup
Team your grey mailing bags 28×34" with packaging tape, document wallets, and cardboard boxes. Explore all sizes in the full Mailing Bags collection.
Royal Mail 24 Tracked
Dispatched same day if ordered before 5 pm Monday to Friday. Please allow up to 1-2 days for delivery.
£1.99
DPD Next Day
Dispatched same day if ordered before 3 pm Monday to Thursday. Not available to Scottish Highlands & Islands.
£4.99
Free on orders over £100