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.

Basis Weight	18 lb Tyvek
Color Family	White
Color(s)	White
Envelopes/Mailers Closure	Redi-Strip® Adhesive
Envelopes/Mailers Exterior Dimensions	10 x 13
Expansion	1.5
Exterior Material(s)	DuPont™ Tyvek®
Flap Type	Square
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
Global Product Type	Catalog Envelopes
Opening	Open End
Post Recycled %	0%
Product Biodegradability in Days	0
Recycled Content %	0%
Seam Type	Center
Security Tinted	No
Ship Class Code	M
Special Features	Heavyweight 18 lb Tyvek®
Total Recycled %	0%
Trade Size	#13 1/2