Heavyweight 18 lb Tyvek Open End Expansion Mailers, #13 1/2, Square Flap, Redi-Strip Adhesive Closure, 10 x 13, White, 100/CT

These Survivor envelopes expand to provide lightweight, inexpensive shipping for bulky items. Expandable envelopes are made of puncture, tear and moisture-resistant DuPont Tyvek material. Envelopes made with Tyvek are half the weight of heavy duty paper envelopes, so you save on postage with each mailing. Our tough expandable mailers resist overstuffing, bad weather and rough handling to deliver your contents intact. With easy to use Quality Park Redi-Strip envelope closures, just peel and press for an instant seal. Heavyweight 18 lb Tyvek. Seam Type: Center; Flap Type: Square; Trade Size: #13 1/2; Security Tinted: No.

• Seam Type : Center

• Global Product Type : Catalog Envelopes

• Flap Type : Square

• Trade Size : #13 1/2

• Security Tinted : No

• Opening : Open End

• Envelopes/Mailers Closure : Redi-Strip Adhesive

• Exterior Material(s) : DuPont Tyvek

• Basis Weight : 18 lb Tyvek

• Envelopes/Mailers Exterior Dimensions : 10 x 13

• Color(s) : White

• Color Family : White

• Expansion : 1.5″

• Product Biodegradability in Days : 0

• Pre-Consumer Recycled Content Percent : 0%

• Post-Consumer Recycled Content Percent : 0%

• Total Recycled Content Percent : 0%

• Footnote 1 : DuPont and Tyvek are registered trademarks of DuPont

• Footnote 2 : Tyvek basis weight is measured in pounds per 500 uncut 24″ x 36″ sheets of Tyvek material

• Special Features : Heavyweight 18 lb Tyvek

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