Survivor R1470 Tyvek USPS First Class Mailer, 9 x 12, White (Box of 100)

Made with lightweight, yet strong and durable DuPont℠Tyvek material. Tough enough to resist the punctures, tears and moisture that can come with the shipping process. Perfect for shipping smaller products to customers or selling personal items online, lightweight mailing envelopes can reduce postage costs. Flap-Stik peel and seal closure for a clean, sanitary seal without moisture and a release strip for quick opening. Never run out with stock-up friendly boxes.