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Pros of Poly Mailers

02/24/2021 industry_insights, branding_basics

Turn snail mail into a marketing success and learn the pros of using poly mailers and other “lumpy mail.” 

Normally, mailboxes are filled with the same old flyers, coupons, bills and more that are easy to overlook, ignore or just throw away. Switch up the boring day-to-day and create a lasting impression with an experience that will help your brand stand out with poly mailers and other forms of lumpy mail.  


Dimensional or “lumpy” mail can be defined as packages or envelopes with bulk, heft or tactile shape that set them apart from regular flat letters. The special and unique shapes help build suspense and attract attention because their shape makes them harder to stack with other flat mail. Recipients will associate your brand’s generosity with the same feeling they get when they receive packages, birthday cards and more with the added excitement of the surprise they will never forget.  


According to the Data and Marketing Association, lumpy mail has an average response rate of 4.4% compared to email that only has a .12% average response rate. Lumpy mail is also opened by nearly 100% of recipients and earns an average 1,225% return on investment.   



At Staples Promo, we make it easy to skip the boring envelopes and boxes. Custom poly mailers are one of our favorite lumpy mail solutions and are ideal for shipping t-shirts, apparel, and soft goods. Poly mailers are perfect for travel because they are lightweight, easy to ship, waterproof and tear-resistant.  


Learn more about the benefits of lumpy mail and check out our kitting guide for more ideas and inspiration to creating an opening experience they will never forget.  



Stand out from boring snail mail. Contact your Staples Representative for more ideas, inspiration or get help creating the perfect unboxing experience for your brand. Don't have a Staples Rep? Call 1.800.369.4669 or email to get started.