13 x 13 Square Envelopes

Oversized materials need an envelope with sufficient space to keep them flat and neatly contained. JAM Paper 13 x 13 square envelopes accommodate large photos, artwork, printed pieces, presentation materials, announcements, and other large flat contents. Their substantial square shape provides an alternative to traditional rectangular document envelopes for business, creative, and personal use.

This collection includes classic white paper along with clear, blue, and charcoal plastic styles. Paper envelopes provide a straightforward choice for printed materials and correspondence, while plastic options suit organization and document storage. Clear styles also make contents easier to identify without opening the envelope.

Use 13 x 13 envelopes to organize project materials, photographs, event documents, marketing pieces, and creative work. Their generous dimensions make them useful for agencies, schools, offices, studios, and event planners handling larger flat items. The square design helps keep related materials together while providing plenty of space for labels and identifying details.