Awhile back, I replaced all the opening portlites with New Found Metals products. They're really nice. Sturdy, shiny, waterproof even in a heeled-over wash. Cannot say enough good about them. I understand the company may be out of business. They got sued and I haven't seen anything about them since. Product may be available. Mine are 9"x5" Installed them myself (with a little help from the admiral).