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Envelopes
Envelopes for Mailing, Office, and Specialty Use
At Advanced Filing Concepts, we offer a wide selection of envelopes for business, office, and personal use. Whether you need business envelopes for invoices, security envelopes for confidential mail, or laser-compatible window envelopes for professional correspondence, you'll find the perfect fit here.
Popular Envelope Styles We Offer: Business Envelopes: Standard #10, #9, and letter-sized envelopes. Window Envelopes: Save time with pre-addressing visibility. Security Envelopes: Protect sensitive documents with tamper-evident designs. Large Mailing Envelopes: Ideal for bulk mailing, legal papers, and photos. Colored Envelopes: Make your mail stand out with vibrant options.
With multiple sizes, styles, colors, and sealing options available, we ensure you get the best envelopes for your needs. Need help choosing? Contact us for expert recommendations.
Sub Categories
WSE
#10 Envelopes (4 1/8 x 9 1/2) 24lb White, Please Recycle Imprint, Window A, 500/Box
WSE
#10 Envelopes, Side Seam (4 1/8 x 9 1/2) 24lb White, Blue Crosshatch Tint 500/Box
WSE
#10 Envelopes, Side Seam (4 1/8 x 9 1/2) 24lb White, Embossed Groove, 500/Box
WSE
#10 Envelopes, Side Seam (4 1/8 x 9 1/2) 24lb White, Square Flap, Kwik-Tak 500/Box
WSE
#10 Envelopes, Side Seam (4 1/8 x 9 1/2) 24lb White, Yellow Peel 'n View Note, 500/Box
![#10 Regular Envelopes [4-1/8 H x 9-1/2 W] 24lb, Natural Alabaster, 500/Box (W3040)](https://cdn11.bigcommerce.com/s-1p4wii2p9w/images/stencil/250x250/products/6890/24402/10-Regular-Envelopes-4-18-H-x-9-12-W-24lb-Natural-Alabaster-500Box_15520__49715.1712922041.png?c=1 "#10 Regular Envelopes [4-1/8 H x 9-1/2 W] 24lb, Natural Alabaster, 500/Box (W3040)")
![#10 Regular Envelopes [4-1/8 H x 9-1/2 W] 24lb, Smoke Gray, 500/Box (W3041)](https://cdn11.bigcommerce.com/s-1p4wii2p9w/images/stencil/250x250/products/6891/24403/10-Regular-Envelopes-4-18-H-x-9-12-W-24lb-Smoke-Gray-500Box_15521__19720.1712922044.png?c=1 "#10 Regular Envelopes [4-1/8 H x 9-1/2 W] 24lb, Smoke Gray, 500/Box (W3041)")
WSE
#10 Security Envelopes (4 1/8 x 9-1/2), 24lb White, Black Security Tint, 500/Box
WSE
#10 Window Envelope (4 1/8 x 9 1/2) 24lb White, Digi-Clear Window C, Blue Tint, 500/Box
WSE
#10 Window Envelopes (4 1/8 x 9 1/2) 24lb White, Black Tint, Window C, 500/Box
WSE
#10 Window Envelopes (4 1/8 x 9 1/2) 24lb White, Blue Crosshatch Tint 500/Box
WSE
#10 Window Envelopes (4 1/8 x 9 1/2) 24lb White, Blue Crosshatch Tint, Window C, 500/Box
WSE
#10 Window Envelopes (4 1/8 x 9 1/2) 24lb White, Blue Tint, Window A, 500/Box
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#10 Window Envelopes (4 1/8 x 9 1/2) 24lb White, Blue Tint, Window H, 500/Box
Why Choose Our Envelopes?
At Advanced Filing Concepts, we specialize in professional-grade envelopes designed for reliability, compatibility, and presentation. Our laser printer–friendly window envelopes, tamper-evident security styles, and colorful options help your documents arrive safely and make an impression. Whether for business, personal, or specialty needs, we offer solutions for every mailing task.
Explore our full envelope collection and find high-quality options that support secure, efficient, and polished communication.
Our Envelope Selection
- Window Envelopes: Laser-compatible options designed for invoices, statements, and correspondence.
- Business Envelopes: Standard #10, #9, and letter-size styles for everyday office mailings.
- Mailing Envelopes: Includes large formats, photo mailers, and durable mailing sleeves.
- Custom Envelopes: Personalized with your brand, message, or specialty size requirements.
- Specialty Envelopes: From interoffice envelopes to medical-grade and X-ray preservers.
Benefits of Using Advanced Filing Concepts Envelopes
- Laser printer–compatible options for professional printing results.
- Made from high-quality paper and materials for durability and presentation.
- Available in a wide range of sizes, colors, and sealing formats.
- Security features like tamper-evident closures and protective linings.
- Bulk and business-friendly pricing for high-volume orders.
How to Choose the Right Envelope
- Identify your use case—billing, correspondence, filing, or bulk mailing.
- Select the size and orientation to match your documents and printer.
- For sensitive materials, opt for padded or security-enhanced envelopes.
- Need custom branding? Explore our custom printing and sizing options.
