Just bought one of these expecting them to be good enough for general stuff kept in boot (ITs a bootliner). https://sslrelay.com/s74326199.oneandoneshop.co.uk/sess/utn;jsessionid=154559acabc27e5/shopdata/index.shopscript By the picture they look more rubber than foam. Arrived yesterday and to my surprise its made out of very light foam. Think foam that is used for packaging used to protect goods in transit and you will get an idea of what it is made from. Very dissapointed as it cost almost 60 for a piece of foam that to be honest doesnt even fit as snuggly as you would expect.