17 x 21 Envelopes

Discover the robust and reliable solution you need for shipping and storing larger documents with Envelopes.com's 17 x 21 inch paperboard mailers. These mailers are designed with a sturdy construction that guarantees your contents remain well-protected throughout their journey. The spacious design accommodates bulkier materials or multiple items, making them versatile for various needs. The user-friendly self-adhesive closure allows for quick and hassle-free sealing, ensuring that your items stay secure. Whether you're sending important documents or delicate items, these 17 x 21 paperboard mailers provide a dependable and convenient packaging option. Available in classic White and Brown Kraft 130lb, these mailers offer both practicality and a professional presentation for all your mailing needs.