Picture of Heavyweight 18lb Tyvek Open End Expansion Mailers, #15 1/2, Cheese Blade Flap, Redi-Strip Closure, 12 x 16, White, 100/Carton

Heavyweight 18lb Tyvek Open End Expansion Mailers, #15 1/2, Cheese Blade Flap, Redi-Strip Closure, 12 x 16, White, 100/Carton

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 safe-just pull and press-adheres without moisture for a clean, instant seal.

SKU: QUAR4290

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: Cheese Blade; Trade Size: #15 1/2; Security Tinted: No.