5 1/2 x 7 1/2 Envelopes

This broad size collection combines booklet, open-end, expansion, plastic, and Tyvek envelope and mailer options across materials such as paper, kraft, Tyvek, and plastic. A 1-inch expansion option adds capacity for thicker contents. Closure choices include peel & seal, button-and-string, and hook & loop. Several storage and mailing constructions are available for contents that share this size but need different access or protection.

Peel & seal closures make quick work of mailing and fulfillment tasks. Button-and-string construction supports repeated access to smaller files without requiring a disposable adhesive seal. Hook & loop options make frequently handled contents easy to reopen. Tyvek provides a durable lightweight option for files that need more resistance to tearing during repeated handling. Reusable plastic and paper constructions provide different ways to manage smaller documents, expansion needs, and repeated access.

Plastic index envelopes cover a wide range of office, school, retail, creative, and shipping needs. Small expansion envelopes can be used for records, reports, catalogs, photos, presentation materials, order fulfillment, and project files. This range makes it easy to switch between lightweight filing and more protective mailing without changing sizes.