Survivor‚® 12 x 16 x 2 DuPont Mailers with Self-Seal Closure - 100 / CT - 12 Width x 16 Length - 2 Gusset - 18 lb - Self-sealing - 100 / Carton - White

Expansion Envelopes with heavyweight Tyvek offer superior protection for mailing bulky items that are not too heavy. They are ideal replacements for costly boxes or cartons. Design features an open-end style and convenient Flap-Stik closure. Envelopes with DuPont Tyvek won't rip, tear or puncture. They are much stronger and more secure than traditional paper envelopes. These 18 lb. expansion envelopes are water-resistant and moisture-resistant. They are easy to use. Simply peel and seal.

• Made with durable yet lightweight, 18 lb. DuPont Tyvek that's tough enough to resist punctures, tears, moisture and chemicals for long-lasting performance
• Gusseted sides that expand up to 2" to accommodate bulky items
• Self-seal, Redi-Strip closure for a clean, quick seal immediately on contact
• Peel-off strip to protect adhesive from dust for a longer shelf life