A8 Invitation Envelopes (5 1/2 x 8 1/8) in Black Linen are a rich, deep black color with a woven linen texture. These envelopes have an elegant square back flap and are ideal for invitations, social mailings, holiday cards, greeting cards and more. Sealing these envelopes is made easy by a Peel & Press strip located on the inside of the back flap. A8 envelopes are perfect for holding A7 and A8 flat and folded cards and its dimensions make it an ideal 5" x 7" photo envelope. You can also use the A8 size as an outer envelope for invitations, as smaller A sized envelopes (A7, A6, A4, A2, A1) fit inside. For social and invitation purposes, the A8 invitation envelope is also a great large sized reply envelope as it easily fits inside A9 and A10 size envelopes. Constructed from smooth, durable 80lb. Black Linen LuxPaper stock. Available plain or printed for customization, branding and creative uses, starting in small quantities of 50 to large quantities of 50,000 and more.