<https://canineconcepts.co.uk/product/water-resistant-green-mattress/#product>
<http://schema.org/description>
"This classic, green quilted, water resistant crate mattress is really practical and great for at home or even in the car. The sizes are also designed to fit inside our Rosewood Options Dog Crates.\r\nSize\r\n22\" - Small\r\n30\" - Medium\r\n36\" - Large\r\n42\" - X Large"
<https://canineconcepts.co.uk/product/water-resistant-green-mattress/>