17 x 21" Kraft Self-Seal Stayflats Plus Mailers (Case of 100)

• Dimensions: 17" x 21" exterior
• Material: .028 Chipboard
• Quantity: 100 mailers per case
• Weight: Approximately 53.44 lbs per case
• Shipping: Parcel eligible

The 17 x 21 inch Kraft Self-Seal Stayflats Plus® Mailers are rigid flat mailers built from .028 kraft chipboard — thick enough to resist bending and folding in transit without requiring supplemental stiffeners. The integrated peel-and-seal closure strip speeds pack-out by eliminating tape or sealing equipment, while a pull-tab tear strip on the recipient end allows clean, damage-free opening.

These mailers are well-suited for e-commerce retailers shipping large-format prints, photographers and studios mailing unframed artwork, print distributors fulfilling poster and signage orders, and businesses sending contracts, certificates, or architectural drawings that cannot arrive creased or rolled.

Each mailer is sold by the case in quantities of 100. The kraft chipboard construction keeps weight low, supporting cost-efficient postage across high-volume programs. These mailers ship via parcel carrier.