Custom printed catalog and mailing envelopes are perfect for holding catalogs, larger inserts and business documents without folding. These versatile mailers are available in multiple sizes and print options to fit your needs. Simple, online ordering with user-friendly design process Online design studio allows you to upload your own artwork or use a design template Choose from a variety of sizes and print options Create an envelope perfect for your next mailing. Spot color printing is a highly readable way to bring your unique brand to a wide variety of mail pieces. Closure is located on the side. Peel and seal closure.