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White jumbo fold-over mailer pack of 20

Partners Brand

Partners Brand ML28221 Jumbo Fold-Over Mailer 28x22x1/4 White 20

SKU CH-69R9-9ER7B

White fold-over mailers measuring 28 by 22 by 1/4 inches, supplied in a pack of 20

  • ColorTransparent
  • Jumbo format fits oversized documents without folding
  • 28 x 22 x 1/4 inch dimensions protect large-format contents
  • Pack of 20 mailers covers high-volume shipping needs
  • White finish gives a clean, professional appearance
  • Fold-over closure seals securely without extra tape

Jumbo Fold-Over Mailer 28x22x1/4

The Partners Brand ML28221 mailer measures 28 inches by 22 inches with a quarter-inch expansion. Each pack contains twenty white mailers suited for high-volume shipping departments and e-commerce fulfilment teams.

Behaviour under sustained load

The quarter-inch gusset maintains its shape when packed with catalogues, apparel bundles or multiple document sets. Rigid side seams resist splitting during repeated packing cycles across a full twenty-unit carton.

Thermals noise and power

As a passive paper-based product the mailer generates no heat, requires no electricity and operates silently. The white exterior stays cool to the touch in warehouse environments and adds negligible weight to parcel loads.

Highlights

  • Jumbo format fits oversized documents without folding
  • 28 x 22 x 1/4 inch dimensions protect large-format contents
  • Pack of 20 mailers covers high-volume shipping needs
  • White finish gives a clean, professional appearance
  • Fold-over closure seals securely without extra tape

Specifications

BrandPARTNERS BRAND
ColorTransparent

Questions about this item

How much space do the 28 x 22 in mailers need for all-day storage?

Each mailer measures 28 x 22 x 1/4 in, so a full pack of 20 requires minimal shelf depth and stays flat without expanding.

What sealing method does the fold-over design require?

The fold-over flap closes without adhesive; you only need tape or a label to secure the 28221 mailer for shipping.

Can the 28221 mailers be used with existing 28 x 22 in inserts?

The interior dimensions match the 28 x 22 in size, so standard inserts of that format fit directly inside the white mailers.

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