Diesel bootcut jeans are also very wearable and are the classic cowboy style jeans. They fit tighter over the behind and thighs but become slightly looser around the calves and ankles – and as the name suggests they can be worn with boots. These jeans can look smarter than classic straight leg Diesel jeans and if you prefer to tuck in your Diesel hoodies or shirts this is the choice for you. If you want to opt for a smarter look opt for bootleg jeans in a darker wash but for more informal occasions lighter wash jeans are fine.