Conveniently primed for immediate shipping, Ship-Lite envelopes offer the insurance that special packages need. Fans of self-sealing envelopes will appreciate the Redi-Strip adhesive and simple peel and seal release. At the post office, USPS's First Class Mail deco is already printed on, which guarantees speedy delivery and damage control. As an extra precaution, each envelopes also features a water-resistant surface to fend off rainy weather.