It looks pretty much like cotton denim, but feels slightly different. I don't have a specific project for it, but couldn't contain my curiosity. It was 30 euros for 3m plus p&p, so pricier than most cotton denim, but not by much. My reasoning, of course, went 'denim is always handy, and you'd get at least 2, maybe 3 pairs of jeans out of 3m'. This calculation happened at lightening speed.