So thrilled to find Cards & Pockets as my daughter and I wanted to design her wedding invitations ourselves AND felt inner envelopes with liners are classic and important. We had intended to use the standard white envelopes but the outer size in euro flap was out of stock, so we used the snow white. The quality of the snow white envelopes was impressive, but they were a little thicker and made my mail merge process a little more challenging, but everything worked out great. The super gold liner we purchased added that perfect extra touch. I also highly recommend purchasing "tape runner" if you are going to assemble the liners in the inner yourself. That and a scoring tool from Michaels made everything look super professional.