Expandable fit made of rip and water resistant Tyvek material with self seal flap.Strong, lightweight envelopes made of Tyvek material are half the weight of heavy-duty paper envelopes; save on postage with every mailing.Envelopes made with Tyvek repel water and resist acids, bases, salts, rot, mildew and stains; perfect for storing taxes and essential papers in the home office.Redi-Strip envelopes seal tight to keep contents safejust pull and pressadheres without moisture for a clean, instant seal.Ideal shipping envelopes for clothing, books, binders and big bulky papers.
14 lb Tyvek Open End Expansion Mailer Value Pack, First Class, #13 1/2, Flip-Stik, Redi-Strip Closure, 10 x 13, White,100/CT