Bike commuters often roll up one of their pant legs to prevent it from getting caught in the bike chain. This is especially important for those who wear long pants, as a loose pant leg may become entangled in the bike chain and cause the rider to lose control and crash. Additionally, pant legs that drag on the ground can become dirty and wet, causing further discomfort to the rider. By rolling up one pant leg, cyclists are able to ride in a more comfortable and safe manner. Furthermore, rolling up one pant leg is a fashion statement that many people enjoy.