An alternative to cardboard boxes
Ecommerce packaging bags with a block base ship bulkier, non-fragile goods in FSC-certified brown Kraft paper. The block bottom and side gussets of these brown paper postal bags open out so the bag expands around voluminous or irregular items, giving a lightweight alternative to a cardboard box. A wide self-adhesive flap with a paper release liner closes the bag with a tamper-evident seal. A fine serrated cut at the opening reduces the risk of catching a sharp edge in handling. The Kraft paper resists wear and light moisture, though it isn't waterproof. These ecommerce packaging bags hold 50% recycled content and are fully recyclable.
Sold and priced per pack, in a range of standard sizes.
Where do block bottom mailing bags work best?
Block bottom ecommerce packaging bags suit businesses that want a recyclable paper alternative to a box for bulkier, non-fragile goods.
- Clothing and textiles, where the block bottom and side gussets expand around folded garments and soft accessories.
- Irregular or voluminous items, where the expandable base holds products that won't sit flat in an envelope.
- Outbound parcels and returns, where the wide self-adhesive flap gives a quick tamper-evident seal at the bench.
- Plastic-reduction policies, where FSC Kraft with 50% recycled content supports paper-based despatch.
Not for
Specifications
- Colour: brown
- Material: FSC-certified Kraft paper
- Construction: block bottom with side gussets, expandable
- Closure: wide self-adhesive flap with paper release liner, tamper-evident
- Opening: fine serrated cut to reduce sharp edges
- Recycled content: 50%
- Recyclability: fully recyclable
- Climate impact: 100% climate-neutral product
- Moisture: resists light moisture, not waterproof
- Use: domestic and international despatch
- Sizes: range of standard sizes
Choose the right mailing bag
E-commerce paper mailing bags with a block base sit in the paper mailer bag range, chosen when bulkier goods need a bag that stands and expands like a box.
FAQs
How do the block bottom and side gussets help?
They let the bag expand for bulkier or irregular items, so it works where a flat envelope or mailer won't.
Are these paper mailing bags for bulky items waterproof?
No. Kraft paper resists light moisture but isn't waterproof; use a liner or a plastic alternative for water-sensitive goods.
Are they suitable for fragile items?
No. These brown postal bags are not padded. For fragile goods, add cushioning such as bubble or use a padded alternative.
Can customers recycle them?
Yes. The bags are fully recyclable and made with 50% recycled content.
Do they show tampering?
The wide self-adhesive flap forms a tamper-evident seal, so opening marks the closure area.
Also useful
- Cardboard envelopes for items that need to a rigid board packaging to stay flat and avoid bending and creasing, such as contracts and business documents.
- Labels for address and carrier details on the Kraft paper surface.