
Poly envelopes store and protect documents.

About C-Line Products
C-Line Products, Inc. is a developer and manufacturer of plastic storage, identification and organization items and a well-known name in the office products industry. C-Line''s many product offerings include sheet protectors, name badges and holders, shop ticket holders, expanding files, report covers and project folders, poly and paper portfolios, binders and binder accessories, laminating film, media storage products, photo holders, office accessories, transparency film and more.
C-Line Reusable Plastic Envelopes
Keep documents protected during transport
Originally, envelopes were used to send documents from one place to another. Today’s reusable plastic envelopes do more than protect documents during transport. Use them for everything from storing interoffice mail to holding customer presentations.
C-Line developed heavyweight polypropylene envelopes that keep documents protected while passing information between departments or clients, or for storage. Available in letter and legal sizes, these durable envelopes can be reused multiple times.
- Heavyweight polypropylene material makes envelopes durable and reusable
- Reusable Envelopes come with string closures, zipper closures, hook and loop closures and snap closures
- Gussets expand to allow for additional storage as noted
- C-Line’s Reusable Envelopes include different closure styles and features that may make one type of envelope work better for specific situations
- Envelopes come in top and side loading options. Gusset expands so holder fits growing files. To secure pages inside, wrap string around circular pieces on cover and flap in a figure eight direction
- Zipper closure is one of the most secure options. Insert pages into envelopes and slide zipper to protect pages inside. Like the string closure, this envelope has expanding gusset to hold more pages
- Another style of side loading envelope is sealed with a hook and loop closure. The plastic fastener is located in the center of the flap, keeping the documents protected inside
- The snap closure envelope has a similar design, except there is a snap button in place of the hook and loop closure. This style includes an exterior pocket for additional storage
Envelope closure styles

String closure
Available in both letter and legal sizes, the string closure comes in top or side loading designs. Use the envelopes to store up to 200 pages due to the expandable gusset that is located on the holder. The translucent finish makes it possible to view a cover page inside, which helps identify the contents of the holder. This style comes in clear, smoke and an assortment of jewel tone colors. Search C-Line 58010.

Zipper closure
This design is one of the most secure since it seals with a zipper along the entire edge of the envelope. The envelope comes in letter and legal size options to fit a variety of page dimensions. The gusset on the holder helps the file expand to fit up to 200 pages of information. The envelope also comes in a variety of style and color options. C-Line 48117 has a unique outer pocket that allows it to store cover letters, to-do lists and packing sheets

Hook and Loop closure
Available in a fashion circle pattern, clear and an assortment of jewel tone colors, this envelope has a hook and loop closure that ensures documents are secure during transport. The hook and loop design has a plastic fastener located in the middle of the envelope on the front cover and the flap. Simply close the flap and apply pressure to the fastener to attach it in place. The side loading envelope makes it easy to flip through pages while they are being stored since the holder is open on the long side. Search C-Line 56612.

Snap closure
Envelopes with a snap closure feature a two-tone design. The flap has a frosted clear finish, while the front and back of the holder come in an assortment of three colors - blue, red and purple. To keep the letter-size pages in place, simply fasten the snap located in the middle of the flap to the base on the front cover. Store additional pages in the easily accessible pocket located on the outside back cover of the envelope. Search C-Line 99366.
![]() String envelopes | ![]() Zippered envelopes | ![]() Hook & Loop envelopes | ![]() Snap envelopes | |
|---|---|---|---|---|
| Customer Reviews | — | — | — | — |
| Price | — | — | — | — |
| Closure style | String | Zipper | Hook & Loop | Snap |
| Size | 8-1/2” x 11” and 8-1/2” x 14 | 8-1/2” x 11” and 8-1/2” x 14 | 8-1/2” x 11” | 8-1/2” x 11” |
| Color | Assorted jewel tone, smoke and slear | Clear and two-tone design in clear/black and clear/assorted | Fashion circle design, clear and assorted jewel tone | Two-tone design in clear/assorted |
| Load style | Top and side loading | Side loading | Side loading | Side loading |
| Unique feature | Transparent cover with expandable gusset | Expandable gusset and 48117 has exterior pocket | Jewel tone and clear are transparent | Exterior pocket on back |
C-Line Reusable Plastic Envelopes

About C-Line Products
C-Line Products, Inc. is a developer and manufacturer of plastic storage, identification and organization items and a well-known name in the office products industry. C-Line''s many product offerings include sheet protectors, name badges and holders, shop ticket holders, expanding files, report covers and project folders, poly and paper portfolios, binders and binder accessories, laminating film, media storage products, photo holders, office accessories, transparency film and more.

Poly envelopes store and protect documents.
Keep documents protected during transport
Originally, envelopes were used to send documents from one place to another. Today’s reusable plastic envelopes do more than protect documents during transport. Use them for everything from storing interoffice mail to holding customer presentations.
C-Line developed heavyweight polypropylene envelopes that keep documents protected while passing information between departments or clients, or for storage. Available in letter and legal sizes, these durable envelopes can be reused multiple times.
- Heavyweight polypropylene material makes envelopes durable and reusable
- Reusable Envelopes come with string closures, zipper closures, hook and loop closures and snap closures
- Gussets expand to allow for additional storage as noted
- C-Line’s Reusable Envelopes include different closure styles and features that may make one type of envelope work better for specific situations
- Envelopes come in top and side loading options. Gusset expands so holder fits growing files. To secure pages inside, wrap string around circular pieces on cover and flap in a figure eight direction
- Zipper closure is one of the most secure options. Insert pages into envelopes and slide zipper to protect pages inside. Like the string closure, this envelope has expanding gusset to hold more pages
- Another style of side loading envelope is sealed with a hook and loop closure. The plastic fastener is located in the center of the flap, keeping the documents protected inside
- The snap closure envelope has a similar design, except there is a snap button in place of the hook and loop closure. This style includes an exterior pocket for additional storage
Envelope closure styles

String closure
Available in both letter and legal sizes, the string closure comes in top or side loading designs. Use the envelopes to store up to 200 pages due to the expandable gusset that is located on the holder. The translucent finish makes it possible to view a cover page inside, which helps identify the contents of the holder. This style comes in clear, smoke and an assortment of jewel tone colors. Search C-Line 58010.

Zipper closure
This design is one of the most secure since it seals with a zipper along the entire edge of the envelope. The envelope comes in letter and legal size options to fit a variety of page dimensions. The gusset on the holder helps the file expand to fit up to 200 pages of information. The envelope also comes in a variety of style and color options. C-Line 48117 has a unique outer pocket that allows it to store cover letters, to-do lists and packing sheets

Hook and Loop closure
Available in a fashion circle pattern, clear and an assortment of jewel tone colors, this envelope has a hook and loop closure that ensures documents are secure during transport. The hook and loop design has a plastic fastener located in the middle of the envelope on the front cover and the flap. Simply close the flap and apply pressure to the fastener to attach it in place. The side loading envelope makes it easy to flip through pages while they are being stored since the holder is open on the long side. Search C-Line 56612.

Snap closure
Envelopes with a snap closure feature a two-tone design. The flap has a frosted clear finish, while the front and back of the holder come in an assortment of three colors - blue, red and purple. To keep the letter-size pages in place, simply fasten the snap located in the middle of the flap to the base on the front cover. Store additional pages in the easily accessible pocket located on the outside back cover of the envelope. Search C-Line 99366.
![]() String envelopes | ![]() Zippered envelopes | ![]() Hook & Loop envelopes | ![]() Snap envelopes | |
|---|---|---|---|---|
| Customer Reviews | — | — | — | — |
| Price | — | — | — | — |
| Closure style | String | Zipper | Hook & Loop | Snap |
| Size | 8-1/2” x 11” and 8-1/2” x 14 | 8-1/2” x 11” and 8-1/2” x 14 | 8-1/2” x 11” | 8-1/2” x 11” |
| Color | Assorted jewel tone, smoke and slear | Clear and two-tone design in clear/black and clear/assorted | Fashion circle design, clear and assorted jewel tone | Two-tone design in clear/assorted |
| Load style | Top and side loading | Side loading | Side loading | Side loading |
| Unique feature | Transparent cover with expandable gusset | Expandable gusset and 48117 has exterior pocket | Jewel tone and clear are transparent | Exterior pocket on back |













