Pet Flight Carrier- max size for 1yo Corgi

We successfully used this carrier to bring our Corgi on an Air Canada flight to Banff 2023 when she was a puppy (10kg) . She stayed with us in the cabin at the airport and under our seat during the flight. We also successfully took her on a VIA Rail train from Jasper to Edmonton. Our dog has now outgrown it, so it’s best suited for small dogs. It was only used for that one trip and has not been used since. I cleaned it and washed the fleece pad, under good condition to go