d4f13e73-12e0-4bf6-8ea3-738b33b67696

Returning Customer

  3. Log In
  4. Forgot Password?

Refine Your Search

Add Filters

  1. Keyword
  2. By Brand
  3. By Category
  4. By UOM
  5. By Country
  6. Recycled
  7. Brand Name
  8. Closure Side
  9. Closure Type
  10. Color
  11. Mailer/Envelope Size
  12. Mailer/Envelope Type
  13. Material
  14. Packaged Quantity
  15. Product Type

  1. OP Supply

  2. 15340 Vantage Parkway E.

  3. Suite 250

  4. Houston, TX 77032

  1. Call: 281.447.1500
  2. Fax: 281.447.5409
    3. Contact Us

Order Manager

  1. Rapid Order

Strength & Moisture Resistant Envelopes

Browse Items

  1. 1
  2. 2
1 - 50 of 86 items Items per page Sort
Compare   Description Price Qty
  2. zoom in
  1. BSN65858
  2. Business Source DuPont Tyvek Catalog Envelopes - Document - 9" Width x 12" Length - Peel & Seal - Tyvek - 100 / Box - White
    • Made with DuPont Tyvek so they are strong and moisture-resistant
    • Peel-to-seal closure requires no moisture; release strip makes document easily accessible
    1. Contract Items
  8. Add Line Note
  9. Be the first to write a review
Login for Price   BX
  2. Add to Cart
  2. zoom in
  1. QUAR1460
  2. Quality Park Flap-Stik Open-end Envelopes - Catalog - #10 1/2 - 9" Width x 12" Length - 14 lb - Peel & Seal - Tyvek - 100 / Box - White
    • Patented release strip makes envelopes easy to open
    • White Tyvek envelope with Flap-Stik closure
    1. Contract Items
  8. Add Line Note
  9. Be the first to write a review
Login for Price   BX
  2. Add to Cart
  2. zoom in
  1. QUAR1580
  2. Quality Park Flap-Stik Open-end Envelopes - Catalog - #13 1/2 - 10" Width x 13" Length - 14 lb - Peel & Seal - Tyvek - 100 / Box - White
    • Patented release strip makes envelopes easy to open
    • White Tyvek envelope with Flap-Stik closure
    1. Contract Items
  8. Add Line Note
  9. Be the first to write a review
Login for Price   BX
  2. Add to Cart
  2. zoom in
  1. QUA46393
  2. Quality Park Open-End Poly Expansion Mailers - Expansion - 13" Width x 16" Length - 2" Gusset - Self-sealing - Polyethylene - 100 / Carton - White
    • Open-end design is durable and moisture-resistant
    • Ideal for bulky mailings
    1. Contract Items
  8. Add Line Note
  9. Be the first to write a review
Login for Price   CT
  2. Add to Cart
  2. zoom in
  1. BSN65806
  2. Business Source Tyvek Expansion Envelopes - Expansion - 12" Width x 15 1/2" Length - 4" Gusset - Peel & Seal - Tyvek - 50 / Box - White
    • Super-strong Tyvek is moisture-resistant and tear-resistant
    • Requires no moisture to seal
    1. Contract Items
  7. Add Line Note
  8. Be the first to write a review
Login for Price  BX
  2. Add to Cart
  2. zoom in
  1. QUAR4500
  2. Quality Park Tyvek Plain Expansion Envelopes - Expansion - 10" Width x 13" Length - 1 1/2" Gusset - 14 lb - Self-sealing - Tyvek - 100 / Carton - Whit
    • Ideal replacement for costly box or carton; superior protection for light, bulky items
    • Open-end style with Flap-Stik closure
    1. Contract Items
  8. Add Line Note
  9. Be the first to write a review
Login for Price   CT
  2. Add to Cart
  2. zoom in
  1. QUAR4430
  2. Quality Park Tyvek Heavyweight Expansion Envelopes - Expansion - 10" Width x 13" Length - 2" Gusset - 18 lb - Self-sealing - Tyvek - 100 / Carton - Wh
    • Ideal replacement for costly box or carton
    • Heavyweight White Tyvek with convenient Flap-Stik closure
    1. Contract Items
  8. Add Line Note
  9. Be the first to write a review
Login for Price   CT
  2. Add to Cart
  2. zoom in
  1. QUAR4292
  2. Quality Park Tyvek Plain Expansion Envelopes - Expansion - 12" Width x 16" Length - 2" Gusset - 14 lb - Self-sealing - Tyvek - 25 / Box - White
    • Ideal replacement for costly box or carton; superior protection for light bulky items
    • White open-end, expansion Tyvek envelope with Flap-Stik closure
    1. Contract Items
  8. Add Line Note
  9. Be the first to write a review
Login for Price   BX
  2. Add to Cart
  2. zoom in
  1. BSN65773
  2. Business Source Tyvek Open-end Envelopes - Document - 10" Width x 15" Length - Peel & Seal - Tyvek - 100 / Box - White
    • Super-strong Tyvek is moisture-resistant and tear-resistant
    • Requires no moisture to seal
    1. Contract Items
  8. Add Line Note
  9. Be the first to write a review
Login for Price   BX
  2. Add to Cart
  2. zoom in
  1. QUAR1790
  2. Quality Park Flap-Stik Open-end Envelopes - Catalog - #15 1/2 - 12" Width x 15 1/2" Length - 14 lb - Peel & Seal - Tyvek - 100 / Box - White
    • Patented release strip makes envelopes easy to open
    • White Tyvek envelope with Flap-Stik closure
    1. Contract Items
  8. Add Line Note
  9. Be the first to write a review
Login for Price   BX
  2. Add to Cart
  2. zoom in
  1. SMD89540
  2. Smead Poly Envelopes with String-Tie Closure - Letter - 8 1/2" x 11" Sheet Size - 200 Sheet Capacity - 1 1/4" Expansion - Polypropylene - Clear - 5 /
    • Tough, acid-free, brightly colored; ideal for the home, office or classroom
    • Expands to 1-1/4" to hold up to 200 sheets
    1. Contract Items
  8. Add Line Note
  9. Be the first to write a review
Login for Price   PK
  2. Add to Cart
  2. zoom in
  1. QUAR1470
  2. Quality Park Survivor Tyvek First Class Envelopes - First Class Mail - #10 1/2 - 9" Width x 12" Length - 14 lb - Peel & Seal - Tyvek - 100 / Box - Whi
    • Patented release strip makes envelopes easy to open
    • White Tyvek envelope with Flap-Stick closure and first-class border
    1. Contract Items
  8. Add Line Note
  9. Be the first to write a review
Login for Price   BX
  2. Add to Cart
  2. zoom in
  1. QUAR4497
  2. Quality Park Tyvek Heavyweight Expansion Envelopes - Expansion - 12" Width x 16" Length - 4" Gusset - 18 lb - Self-sealing - Tyvek - 50 / Carton - Whi
    • Ideal replacement for costly box or carton
    • Heavyweight White Tyvek with convenient, Flap-Stik closure
    1. Contract Items
  8. Add Line Note
  9. Be the first to write a review
Login for Price   CT
  2. Add to Cart
  2. zoom in
  1. QUAR1590
  2. Quality Park Survivor Tyvek First Class Envelopes - First Class Mail - #13 1/2 - 10" Width x 13" Length - 14 lb - Peel & Seal - Tyvek - 100 / Box - Wh
    • Patented release strip makes envelopes easy to open
    • White Tyvek envelope with Flap-Stik closure and first-class border
    1. Contract Items
  8. Add Line Note
  9. Be the first to write a review
Login for Price   BX
  2. Add to Cart
  2. zoom in
  1. QUAR4510
  2. Quality Park Tyvek Open-End 1st Class Envelopes - First Class Mail - 10" Width x 13" Length - 1 1/2" Gusset - 14 lb - Self-sealing - Tyvek - 100 / Car
    • Ideal replacement for costly box or carton; superior protection for light, bulky items
    • White open-end, expanding Tyvek envelopes with Flap-Stik closure and FCB
    1. Contract Items
  8. Add Line Note
  9. Be the first to write a review
Login for Price   CT
  2. Add to Cart
  2. zoom in
  1. QUAR4202
  2. Quality Park Tyvek Plain Expansion Envelopes - Expansion - 10" Width x 13" Length - 1/2" Gusset - 14 lb - Self-sealing - Tyvek - 25 / Box - White
    • Ideal replacement for costly box or carton; offers superior protection for mailing light bulky items
    • White open-end, expanding Tyvek envelope with Flap-Stik closure
    1. Contract Items
  7. Add Line Note
  8. Be the first to write a review
Login for Price   BX
  2. Add to Cart
  2. zoom in
  1. QUA46390
  2. Quality Park Open-End Poly Expansion Mailers - Expansion - 11" Width x 13" Length - 2" Gusset - Self-sealing - Polyethylene - 100 / Carton - White
    • Open-end design is durable and moisture-resistant
    • Ideal for bulky mailings
    1. Contract Items
  8. Add Line Note
  9. Be the first to write a review
Login for Price   CT
  2. Add to Cart
  2. zoom in
  1. QUAR3140
  2. Quality Park White Leather Tyvek Plain Envelopes - Catalog - 10" Width x 13" Length - 14 lb - Self-sealing - Tyvek - 100 / Box - White
    • Features embossed, leatherlike texture that gets mail noticed
    • White Tyvek with Flap-Stik closure
    1. Contract Items
  8. Add Line Note
  9. Be the first to write a review
Login for Price   BX
  2. Add to Cart
  2. zoom in
  1. QUAR1660
  2. Quality Park Flap-Stik Open-end Envelopes - Catalog - 10" Width x 15" Length - 14 lb - Peel & Seal - Tyvek - 100 / Box - White
    • Patented release strip makes envelopes easy to open
    • White Tyvek envelope with Flap-Stik closure
    1. Contract Items
  8. Add Line Note
  9. Be the first to write a review
Login for Price   BX
  2. Add to Cart
  2. zoom in
  1. SPR19806
  2. Sparco Plain Open Side Tyvek Expansion Envelopes - Expansion - 12" Width x 16" Length - 2" Gusset - Peel & Seal - Tyvek - 100 / Carton - White
    • Super-strong, moisture-resistant and tear-resistant
    • Tyvek expansion
    1. Contract Items
  6. Ships in 1-2 Bus Days
  9. Add Line Note
  10. Be the first to write a review
Login for Price   CT
  2. Add to Cart
  2. zoom in
  1. QUAR4610
  2. Quality Park Self-Seal Light Weight Expansion Envelopes - Expansion - 10" Width x 13" Length - 2" Gusset - 14 lb - Self-sealing - Tyvek - 100 / Carton
    • Ideal replacement for costly box or carton
    • Lightweight White Tyvek with convenient, Flap-Stik closure
    1. Contract Items
  8. Add Line Note
  9. Be the first to write a review
Login for Price   CT
  2. Add to Cart
  2. zoom in
  1. BSN65860
  2. Business Source DuPont Tyvek 1st Class Envelopes - Document - 12" Width x 15 1/2" Length - Peel & Seal - Tyvek - 100 / Box - White
    • Super-strong Tyvek is moisture-resistant and tear-resistant
    • Requires no moisture to seal
    1. Contract Items
  8. Add Line Note
  9. Be the first to write a review
Login for Price   BX
  2. Add to Cart
  2. zoom in
  1. QUAR4520
  2. Quality Park Tyvek Plain Expansion Envelopes - Expansion - 12" Width x 16" Length - 2" Gusset - 14 lb - Self-sealing - Tyvek - 100 / Carton - White
    • Ideal replacement for costly box or carton; superior protection for light, bulky items
    • Open-end style with Flap-Stik closure
    1. Contract Items
  8. Add Line Note
  9. Be the first to write a review
Login for Price   CT
  2. Add to Cart
  2. zoom in
  1. QUAR2011
  2. Quality Park Lightweight Tyvek Catalog Envelopes - Catalog - 9" Width x 12" Length - Peel & Seal - Tyvek - 100 / Box - White
    • Strong, moisture-resistant catalog envelope is light as a cloud in weight
    • White, Cirrus lightweight Tyvek with inside tint for security of contents
    1. Contract Items
  8. Add Line Note
  9. (1 review)
Login for Price   BX
  2. Add to Cart
  2. zoom in
  1. LIO22080-CR
  2. Lion Hook and Loop Closure Poly Envelopes - A4 - 8 17/64" x 11 11/16" Sheet Size - Poly - Clear - Recycled - 1 Each
    • Sturdy poly for repeated use and storage
    • Easy access with convenient, hook-and-loop closure
    1. Contract Items
  8. Add Line Note
  9. Be the first to write a review
Login for Price  EA
  2. Add to Cart
  2. zoom in
  1. QUAR4630
  2. Quality Park Self-Seal Light Weight Expansion Envelopes - Expansion - 10" Width x 15" Length - 2" Gusset - 14 lb - Self-sealing - Tyvek - 100 / Carton
    • Ideal replacement for costly box or carton
    • Lightweight White Tyvek with convenient, Flap-Stik closure
    1. Contract Items
  8. Add Line Note
  9. Be the first to write a review
Login for Price   CT
  2. Add to Cart
  2. zoom in
  1. SPR19758
  2. Sparco Plain Open End Tyvek Catalog Envelopes - Document - #13 1/2 - 10" Width x 13" Length - Tyvek - 100 / Box - White
    • Self-adhesive flap creates tight, instant seal without moistening
    • High-quality design stays strong at seams for worry-free use
    1. Contract Items
  6. Ships in 1-2 Bus Days
  9. Add Line Note
  10. Be the first to write a review
Login for Price   BX
  2. Add to Cart
  2. zoom in
  1. QUAR2012
  2. Quality Park Lightweight Tyvek Catalog Envelopes - Catalog - 10" Width x 13" Length - Peel & Seal - Tyvek - 100 / Box - White
    • Strong, moisture-resistant catalog envelope is light as a cloud in weight
    • White, Cirrus lightweight Tyvek with inside tint for security of contents
    1. Contract Items
  8. Add Line Note
  9. Be the first to write a review
Login for Price   BX
  2. Add to Cart
  2. zoom in
  1. QUAR4200
  2. Quality Park Tyvek Open-End Expansion Envelopes - Expansion - 10" Width x 13" Length - 1 1/2" Gusset - 18 lb - Self-sealing - Tyvek - 100 / Carton - W
    • Ideal replacement for costly box or carton; offers superior protection for mailing light bulky items
    • White open-end, expanding Tyvek with Flap-Stik closure
    1. Contract Items
  8. Add Line Note
  9. Be the first to write a review
Login for Price   CT
  2. Add to Cart
  2. zoom in
  1. SPR19807
  2. Sparco Plain Open End Tyvek Expansion Envelopes - Document - 10" Width x 13" Length - 1 1/2" Gusset - Tyvek - 100 / Carton - White
    • Regular-weight, open-end envelopes
    • Super-strong
    1. Contract Items
  6. Ships in 1-2 Bus Days
  9. Add Line Note
  10. Be the first to write a review
Login for Price   CT
  2. Add to Cart
  2. zoom in
  1. SPR19756
  2. Sparco Plain Open End Tyvek Catalog Envelopes - Document - #10 1/2 - 9" Width x 12" Length - Tyvek - 100 / Box - White
    • Self-adhesive flap creates tight, instant seal without moistening
    • High-quality design stays strong at seams for worry-free use
    1. Contract Items
  6. Ships in 1-2 Bus Days
  9. Add Line Note
  10. Be the first to write a review
Login for Price   BX
  2. Add to Cart
  2. zoom in
  1. QUAR1520
  2. Quality Park Flap-Stik Open-end Envelopes - Catalog - #12 1/2 - 9 1/2" Width x 12 1/2" Length - 14 lb - Peel & Seal - Tyvek - 100 / Box - White
    • Patented release strip makes envelopes easy to open
    • White Tyvek envelope with Flap-Stik closure
    1. Contract Items
  8. Add Line Note
  9. Be the first to write a review
Login for Price   BX
  2. Add to Cart
  2. zoom in
  1. QUA46200
  2. Quality Park White Poly Mailing Envelopes - Catalog - 14" Width x 17" Length - Self-sealing - Polypropylene - 100 / Pack - White
    • Features White opaque, co-extruded film for extra tear-resistant strength
    • White polyethylene open-end with Redi-Strip adhesive closure
    1. Contract Items
  7. Add Line Note
  8. Be the first to write a review
Login for Price   PK
  2. Add to Cart
  2. zoom in
  1. QUAR4492
  2. Quality Park Tyvek Heavyweight Expansion Envelopes - Expansion - 12" Width x 16" Length - 2" Gusset - 18 lb - Self-sealing - Tyvek - 100 / Carton - Wh
    • Ideal replacement for costly box or carton
    • Heavyweight White Tyvek with convenient Flap-Stik closure
    1. Contract Items
  8. Add Line Note
  9. Be the first to write a review
Login for Price   CT
  2. Add to Cart
  2. zoom in
  1. SMD89669
  2. Smead Poly Envelopes with Hook-and-Loop Closure - Letter - 8 1/2" x 11" Sheet Size - 200 Sheet Capacity - 1 1/4" Expansion - Polypropylene - Assorted
    • Protect your documents with durable, waterproof and tear-resistant poly envelopes
    • Expands up to 1-1/4"
    1. Contract Items
  7. Add Line Note
  8. Be the first to write a review
Login for Price   PK
  2. Add to Cart
  2. zoom in
  1. QUAR1582
  2. Quality Park Flap-Stik Open-end Envelopes - Catalog - #13 1/2 - 10" Width x 13" Length - 14 lb - Peel & Seal - Tyvek - 50 / Box - White
    • Patented release strip makes envelopes easy to open
    • White Tyvek envelope with Flap-Stik closure
    1. Contract Items
  8. Add Line Note
  9. Be the first to write a review
Login for Price   BX
  2. Add to Cart
  2. zoom in
  1. QUAR3120
  2. Quality Park White Leather Tyvek Plain Envelopes - Catalog - 9" Width x 12" Length - 14 lb - Self-sealing - Tyvek - 100 / Box - White
    • Features embossed, leatherlike texture that gets mail noticed
    • White Tyvek with Flap-Stik closure
    1. Contract Items
  8. Add Line Note
  9. Be the first to write a review
Login for Price   BX
  2. Add to Cart
  2. zoom in
  1. QUAR5121
  2. Quality Park Tyvek Jumbo Survivor Envelopes - Catalog - 18" Width x 23" Length - 18 lb - Self-sealing - Tyvek - 25 / Box - White
    • Great for storing artwork, plates, negative, maps and blueprints
    • White Tyvek envelopes with Flap-Stik closure
    1. Contract Items
  7. Add Line Note
  8. Be the first to write a review
Login for Price   BX
  2. Add to Cart
  2. zoom in
  1. QUA46199
  2. Quality Park Poly Mailing Envelopes - Catalog - 12" Width x 15 1/2" Length - Self-sealing - Polypropylene - 100 / Pack - White
    • Double perforations for easy opening
    • White polyethylene with Redi-Strip closure
    1. Contract Items
  8. Add Line Note
  9. Be the first to write a review
Login for Price   PK
  2. Add to Cart
  2. zoom in
  1. QUAR1670
  2. Quality Park Survivor Tyvek First Class Envelopes - First Class Mail - 10" Width x 15" Length - 14 lb - Peel & Seal - Tyvek - 100 / Box - White
    • Patented release strip makes envelopes easy to open
    • White Tyvek envelope with Flap-Stik closure and first-class border
    1. Contract Items
  8. Add Line Note
  9. Be the first to write a review
Login for Price   BX
  2. Add to Cart
  2. zoom in
  1. CLI35107
  2. C-Line Products Reusable Poly Envelope, Side Load, Clear, 5/PK - Letter - 8 1/2" x 11" Sheet Size - Polypropylene - 5 / Pack
    • Acid-free material provides archival-quality storage for letter-size items
    • Durable design protects your documents from spills and wear
    1. Contract Items
  6. Ships in 1-2 Bus Days
  8. Add Line Note
  9. Be the first to write a review
Login for Price   PK
  2. Add to Cart
  2. zoom in
  1. PFX84181
  2. Pendaflex Durable Polypropylene Envelopes - Letter - 8 1/2" x 11" Sheet Size - 1" Expansion - Polypropylene - Clear - 1 Each
    • Side-opening
    • Durable polypropylene
    1. Contract Items
  7. Add Line Note
  8. Be the first to write a review
Login for Price  EA
  2. Add to Cart
  2. zoom in
  1. SMD89527
  2. Smead Poly Envelopes with String-Tie Closure - Letter - 8 1/2" x 11" Sheet Size - 1 1/4" Expansion - Polypropylene - Red - 5 / Pack
    • Tough, acid-free, brightly colored; ideal for the home, office or classroom
    • Expands to 1-1/4" to hold up to 200 sheets
    1. Contract Items
  8. Add Line Note
  9. (1 review)
Login for Price   PK
  2. Add to Cart
  2. zoom in
  1. SMD89542
  2. Smead Poly Envelopes with String-Tie Closure - Letter - 8 1/2" x 11" Sheet Size - 1 1/4" Expansion - Polypropylene - Blue - 5 / Pack
    • Tough, acid-free, brightly colored; ideal for the home, office or classroom
    • Expands to 1-1/4" to hold up to 200 sheets
    1. Contract Items
  7. Add Line Note
  8. Be the first to write a review
Login for Price   PK
  2. Add to Cart
  2. zoom in
  1. Discontinued
  2. SMD89543
  3. Smead Poly Envelopes with String-Tie Closure - Letter - 8 1/2" x 11" Sheet Size - Polypropylene - Green - 5 / Pack
    • Tough, acid-free, brightly colored; ideal for the home, office or classroom
    • Expands to 1-1/4" to hold up to 200 sheets
    1. Contract Items
  8. Add Line Note
  9. Be the first to write a review
Login for Price   PK
  1. 0
  2. zoom in
  1. SMD89544
  2. Smead Poly Envelopes with String-Tie Closure - Letter - 8 1/2" x 11" Sheet Size - Polypropylene - Purple - 5 / Pack
    • Heavy-duty to resist tear and repel water; acid-free
    • Clear polypropylene with string-and-button closure
    1. Contract Items
  6. Ships in 1-2 Bus Days
  8. Add Line Note
  9. Be the first to write a review
Login for Price   PK
  2. Add to Cart
  2. zoom in
  1. SMD89547
  2. Smead Poly Envelopes with String-Tie Closure - Letter - 8 1/2" x 11" Sheet Size - 1 1/4" Expansion - Polypropylene - Red - 5 / Pack
    • Tough, acid-free, brightly colored; ideal for the home, office or classroom
    • Expands to 1-1/4" to hold up to 200 sheets
    1. Contract Items
  8. Add Line Note
  9. Be the first to write a review
Login for Price   PK
  2. Add to Cart
  2. zoom in
  1. SMD89595
  2. Smead Poly End Tab Envelope - Letter - 8 1/2" x 11" Sheet Size - 1" Expansion - 5 Front Pocket(s) - Polypropylene - Clear - 5 / Pack
    • Store important documents that cannot be punched
    • 1" expansion
    1. Contract Items
  6. Ships in 1-2 Bus Days
  8. Add Line Note
  9. Be the first to write a review
Login for Price   PK
  2. Add to Cart
  2. zoom in
  1. SPR25003
  2. Sparco Tyvek Open-End First Class Envelopes - Document - 10" Width x 15" Length - Peel & Seal - Tyvek - 100 / Box - White
    • Self-adhesive flap creates tight, instant seal without moistening
    • High-quality design stays strong at seams for worry-free use
    1. Contract Items
  6. Ships in 1-2 Bus Days
  9. Add Line Note
  10. Be the first to write a review
Login for Price   BX
  2. Add to Cart
  2. zoom in
  1. LIO22080-PR
  2. Lion Hook and Loop Closure Poly Envelopes - A4 - 8 17/64" x 11 11/16" Sheet Size - Poly - Purple - Recycled - 1 Each
    • Sturdy poly for repeated use and storage
    • Easy access with convenient, hook-and-loop closure
    1. Contract Items
  7. Add Line Note
  8. Be the first to write a review
Login for Price  EA
  2. Add to Cart
  1. 1
  2. 2
1 - 50 of 86 items Items per page Sort