Description Made with durable 14-lb DuPont™ Tyvek®, which is strong enough to withstand the most grueling conditions. The material is puncture, tear and moisture resistant—virtually indestructible.
Product Details Basis Weight 14 lb Tyvek Color Family White Color(s) White Envelopes/Mailers Closure Redi-Strip® Adhesive Envelopes/Mailers Exterior Dimensions 10 x 13 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 Format/Border USPS First Class Mail Format & Border Global Product Type Catalog Envelopes Opening Open End Post-Consumer Recycled Content Percent 0% Pre-Consumer Recycled Content Percent 0% Preprinted Message First Class Mail Product Biodegradability in Days 0 Seam Type Center Security Tinted No Special Features USPS First Class Mail—Lightweight 14 lb Tyvek®. Total Recycled Content Percent 0%