Survivor® Heavy 18 lb Tyvek Open End Expansion Mailers, First Class, #13 1/2, Square Flap, Redi-Strip 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. USPS First Class Mail—Heavyweight 18 lb Tyvek®. Seam Type: Center; Flap Type: Square; Trade Size: #13 1/2; Security Tinted: No.

Global Product Type	Catalog Envelopes
Seam Type	Center
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
Format/Border	USPS First Class Mail Format & Border
Preprinted Message	First Class Mail
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	USPS First Class Mail—Heavyweight 18 lb Tyvek®