Our Navy Lined #10 Business Envelopes are the perfect complement to our slimline invitations, trifold brochures, and letterhead! These envelopes are made from a 24lb bond / 60lb text (90 gsm) paper stock and are inkjet and laser printer compatible. They also measure 4 1/8" x 9 1/2". Flap is gummed for sealing. Please note: the foil lining only extends between 1 1/2" - 2" down into the envelope.