• Top Flight #10 security strip and seal envelopes 500 count
  • Top Flight heavyweight 24 lb mailing envelopes
  • Top Flight security tinted business envelopes
  • Top Flight #10 envelopes for office mailing
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Frequently asked questions

What size are these envelopes?

They are standard #10 envelopes, measuring 4 1/8" x 9 1/2".

How do the envelopes seal?

They use a strip-and-seal closure, so there is no need to lick the flap.

What paper weight do they use?

These envelopes are made with 24 lb heavyweight paper.

Do they offer privacy?

Yes, the security-tinted interior is designed to help keep contents discreet.

How many envelopes come in one pack?

Each pack includes 500 envelopes.

Top Flight #10 Security Strip & Seal Envelopes, 24lb, 4 1/8"x9 1/2" 500-count

Top Flight #10 Security Strip & Seal Envelopes, 24lb, 4 1/8"x9 1/2" 500-count

Brand Top Flight
$24.99 USD
$24.99 USD
Sale Sold out

Carrier-calculated rates · $100+ one-time orders may ship free when the selected rate is $14.99 or less

  • Secure checkout
  • Carrier-calculated rates · $100+ one-time orders may ship free when the selected rate is $14.99 or less
  • Shipping across the U.S.
  • 30-day eligible U.S. returns
  • New condition
Shipping & delivery In stock and ready to order
  • SKU LFY-1052C5D8-01
  • Condition New
  • Processing 1–2 business days
  • Delivery U.S. delivery · Rates and delivery estimates shown at checkout
  • Profile Heavy & Bulky
  • Shipping Carrier-calculated services are shown at checkout. Eligible one-time orders with a $100+ merchandise subtotal ship free only when the selected rate is $14.99 or less; subscriptions and higher rates are excluded.
  • Free shipping Eligible one-time orders with a $100+ merchandise subtotal qualify when the selected rate is $14.99 or less. Subscriptions and higher rates are excluded; checkout confirms eligibility.
  • Returns Eligible returns for orders delivered within the U.S. may be requested within 30 days after delivery.

Shipping policy Return policy

Independent U.S. retailer. Brand names and trademarks belong to their respective owners.

Top Flight #10 security strip & seal envelopes offer a clean, professional mailing solution for everyday office use. With 24 lb heavyweight paper, security tinting, and a no-lick strip-and-seal closure, they deliver practical value for high-volume correspondence.

Key Features

  • #10 envelope size for standard business mailing
  • Strip-and-seal closure for quick, mess-free sealing
  • 24 lb heavyweight paper for a more substantial feel
  • Security tinted interior helps protect contents
  • Ideal for invoices, statements, letters, and office mail
  • Professional look for home offices and workplace use
  • 500-count pack supports high-volume mailing needs
  • Convenient everyday essential at a strong value

Professional mailing essentials at a better-than-retail price.

Limited quantities available.

Frequently asked questions

What size are these envelopes?

They are standard #10 envelopes, measuring 4 1/8" x 9 1/2".

How do the envelopes seal?

They use a strip-and-seal closure, so there is no need to lick the flap.

What paper weight do they use?

These envelopes are made with 24 lb heavyweight paper.

Do they offer privacy?

Yes, the security-tinted interior is designed to help keep contents discreet.

How many envelopes come in one pack?

Each pack includes 500 envelopes.

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