12 x 15 Envelopes

Broad document sets can be mailed or stored in an envelope suited to oversized office contents. JAM Paper 12 x 15 inch envelopes accommodate reports, folders, catalogs, booklets, presentations, contracts, and administrative files. This large size serves corporations, schools, legal offices, government departments, and shipping teams.

Added depth supports stacked papers and bulky materials that may not fit standard flat envelopes. Current choices include a 3 inch expansion for substantial files, publications, and grouped records. Expandable mailing envelopes help keep related materials together during storage, routing, and delivery.

Lightweight Tyvek provides strong protection without adding unnecessary mailing weight. White 18 lb material creates a professional exterior while resisting tears during repeated handling and shipment. Peel & seal closure supports quick preparation for mailrooms, fulfillment centers, offices, and records departments.