When appearance counts, choose these attractive white mailers to make your shipments stand out. • Our version of the courier industry standard overnight letter • Side loading Stayflats® ExMailers and Express Pouch open at the wider side and make fulfillment a breeze. • Self-seal style features a peel and seal strip for closing mailers and a pull tab tear strip for opening mailer. • Mailers weigh 1 to 2 ounces less than comparable rigid bag mailers. • Made from Lightweight 100% Recycled paperboard (.014 CCNB paperboard).