Tyvek Jumbo Mailer, 18 x 23, White, 25/Box

Lightweight, moisture- and rip-resistant mailers made of DuPont™ Tyvek® help to reduce shipping costs. Clean, crisp look conveys a professional image. Flap-Stik® peel-and-press flap seals securely. Envelope Size: 18 x 23; Envelope/Mailer Type: Large Format; Closure: Self-Adhesive; Seam Type: Contemporary.