White Open Side Expansion Mailers in 10 X 13 Size, Dupont Tyvek, #13 1-2, Square Flap, Redi-strip Closure, 100-carton Pack

Expandable mailer made with DuPont™ Tyvek® material delivers the best possible protection at a shipping-cost-saving weight. Inserting and removing contents is easy because of its horizontal, open side orientation. Self-adhesive Redi-Strip® closure provides a secure, peel-and-press seal. Clean, crisp look makes a professional impression. Lightweight – 14 lb. Seam Type: Center; Flap Type: Square; Trade Size: #13 1/2; Security Tinted: No.