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

Business Source

Business Source 42101 Kraft Envelopes 10x13 28 lb 250/Box

SKU CH-GKWV-AQ78Q MPN 42101

Heavy-duty kraft envelopes hold catalogs and documents, with a moisture-activated gummed flap for a secure seal

  • TypeBusiness Envelopes
  • ColorKraft
  • Heavy-duty 28 lb kraft paper protects contents during transit
  • Opaque material keeps documents private inside the envelope
  • Open-ended design allows quick insertion of catalogs and brochures
  • Moisture-activated gummed flap creates a secure seal
  • 250 envelopes per box supports high-volume mailing needs

Built for Bulk Mailing

These Business Source 42101 envelopes ship as a 250-count box of heavy-duty kraft mailers. The 28 lb stock provides opacity that keeps contents private during transit. An open-ended design simplifies loading documents, catalogs or promotional material. A moisture-activated gummed flap creates a secure seal once moistened.

Upgrade from Lightweight Mailers

The 28 lb kraft construction replaces thinner envelopes that can tear or show contents through the paper. The jump is worth it when you send multi-page documents, catalogs or direct-mail pieces that need rigidity and privacy. The open-ended format also speeds up high-volume stuffing compared to peel-and-seal alternatives. Each box delivers 250 consistent units for large campaigns.

Suits High-Volume Shippers

Offices, mailrooms and marketers sending batches of brochures, reports or catalogs will value the box quantity and durable stock. Buyers who need only a few envelopes at a time or who prefer self-adhesive closures should look at smaller packs or different closure styles. The kraft colour also limits branding options for companies requiring white or custom-printed mailers.

Highlights

  • Heavy-duty 28 lb kraft paper protects contents during transit
  • Opaque material keeps documents private inside the envelope
  • Open-ended design allows quick insertion of catalogs and brochures
  • Moisture-activated gummed flap creates a secure seal
  • 250 envelopes per box supports high-volume mailing needs

Specifications

TypeBusiness Envelopes
BrandBusiness Source
ColorKraft
Shipping weight5.44 kg
Package size333 × 245 × 157 mm

Questions about this item

What size documents fit inside the 10 by 13 inch envelope?

The envelope measures 10 inches by 13 inches, so it accommodates documents up to that size such as catalogs, brochures or direct mail pieces.

How do I seal the moisture-activated gummed flap correctly?

Moisten the gummed flap evenly along its full length, press firmly and hold for a few seconds; the most common mistake is using too little moisture, which leaves a weak seal.

When will I need to replace the box of 250 envelopes?

A box contains 250 envelopes; you will need a replacement once your mailing volume uses that quantity.

Also in this aisle

People compared these

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