• 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.
• Ideal shipping envelopes for clothing, books, binders and big bulky papers.

12" x 16" x 2" expansion mailers are made with 14 lb. DuPont Tyvek and feature a Redi-Strip closure. Protective material is strong and durable enough to easily withstand the most grueling conditions and resists punctures, tears and moisture. Everyday mailers provide a highly effective and useful way to send important information and items to others whether from home or work. They can help increase the effectiveness of your important mailings and the assurance that your contents will be delivered. Mailers expand up to 2" to accommodate bulky items. Redi-Strip closure requires no moisture for a secure seal. Lightweight construction could help you save on shipping costs.