: Mailing & Shipping Supplies : Envelopes : columbian envelopes 14 pounds tyvek 100

Ideal for securing bulky mailings Expanding gusset helps get your extra-thick mailings through the mail. Redi-Strip closure requires no moisture to seal. Made of ...  more

Columbian Tyvek 14- and 18-lb envelopes feature superior water, chemical, moisture, burst, tear and puncture resistant protection. These open end envelopes feature ...  more

Strong material won't rip, tear or puncture Expand to allow for easy insertion of bulky items like books, binders, catalogs, etc. Lightweight to help you save on ...  more

Durable envelopes stand up to everyday use Ideal for multipurpose mail and file storage. Wide seams offer added strength. Fully gummed flap provides a strong, ...  more

Fully gummed flap provides a strong, dependable seal Ideal for cards, invitations, announcements, seasonal greetings and more! Perfectly sized to hold an 8 1/2in. x ...  more

Made of water- and tear-resistant material for added protection Release strip is easily accessible, yet maintains security of contents. Flap-Stik closure requires ...  more

DuPont lightweight Tyvek material is strong and moisture resistant Security-tinted inside for privacy of contents. Redi-Strip closure requires no moisture to seal. ...  more

Made of water- and tear-resistant material for added protection Release strip is easily accessible, yet maintains security of contents. Flap-Stik closure requires ...  more

Strong material won't rip, tear or puncture Expand to allow for easy insertion of bulky items like books, binders, catalogs, etc. Lightweight to help you save on ...  more

Made of water- and tear-resistant material for added protection Release strip is easily accessible, yet maintains security of contents. Flap-Stik closure requires ...  more

Fully gummed flap provides a strong, dependable seal Ideal for cards, invitations, announcements, seasonal greetings and more! Perfectly sized to hold an 8 1/2in. x ...  more

Perfect for a variety of applications Ideal for business and professional use. Fully gummed flap provides a strong, dependable seal. Made with crisp 24-lb white ...  more

Columbian QUACO897 Horizontal, file-style expansion mailer makes material packing and removal easy. Durable Tyvek construction is substantially stronger and ...  more

Columbian QUACO895 Horizontal, file-style expansion mailer makes material packing and removal easy. Durable Tyvek construction is substantially stronger and ...  more

Columbian WEVCO814 Durable expansion mailer is ideal for shipping bulkier items. Tyvek material is almost impossible to rip or puncture. Self-adhesive Grip-Seal ...  more

Columbian WEVCO813 Durable expansion mailer is ideal for shipping bulkier items. Tyvek material is almost impossible to rip or puncture. Self-adhesive Grip-Seal ...  more