We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
White kraft envelope with poly window, vellum finish, flood coated black ink

WESTERN STATES

WESTERN STATES Poly Window Open Side Booklet Envelope 6x9 24# 500 Box

SKU CH-K4GM-00FW0

Holds documents securely with a clear poly window and flood-coated black ink on 24# vellum-finish paper, packed 500 per box

  • Showcase window displays contents clearly
  • 84% brightness gives crisp professional look
  • Vellum finish adds premium tactile feel
  • Side-seam construction strengthens mailing durability
  • SFI certified paper supports responsible sourcing

6 x 9 Poly Window Envelope

These 6 x 9 poly window envelopes suit offices and schools mailing standard booklets or folded documents. The showcase window measures 4 x 7 inches and sits one inch from the left and bottom edges for easy address alignment. A flood-coated black ink exterior gives a professional finish. The box contains 500 envelopes for high-volume mailing tasks.

Remoistening Seal And Side Seams

Each envelope uses a traditional remoistening seal that activates with moisture for a secure closure. Side-seam construction keeps the front panel flat for clean printing or labelling. The vellum finish provides a smooth writing surface. Note that these envelopes are not laser compatible and should not be run through laser printers.

Check Paper Stock And Print Method

Verify that your mailing process uses inkjet printing, handwriting or labels rather than laser printing. Confirm the 6 x 9 inch dimensions match your insert size and that the 4 x 7 inch window position aligns with your address block layout. The 24 lb white kraft paper stock and SFI certification suit standard mailing weight requirements.

Highlights

  • Showcase window displays contents clearly
  • 84% brightness gives crisp professional look
  • Vellum finish adds premium tactile feel
  • Side-seam construction strengthens mailing durability
  • SFI certified paper supports responsible sourcing

Specifications

BrandThe Envelope Supplies Shop

Questions about this item

How can I confirm the envelopes feed correctly after loading them?

Run a test print on a single envelope and check that the 4" x 7" window aligns with your address block and the remoistening seal closes cleanly.

What comes in the box and what must I supply?

The box contains 500 white kraft envelopes with flood-coated black ink and a poly showcase window; you will need a printer that is not laser-based and your own mailing labels or printed addresses.

Which version should I choose for high-volume mailing?

The single 500-count box at 24# weight with 84% brightness vellum finish is the only configuration offered.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.