Trail shoes are an essential item to have when running off road. They usually have larger lugs on the bottom of the shoe which give enhanced grip when running in slippery conditions such as mud or snow. Different shoes have varying lengths of lugs depending on what terrain you are running on. Typically, trail shoes also have a more durable sole in order to protect the foot from sharp rocks and uneven ground. Finally, the shoes generally have a tighter heel cup to stop the foot from slipping when descending or ascending steep ground. Some trail shoes also come in waterproof versions, which is useful when running through particularly wet or muddy terrain, but on the other hand can mean that your feet get sweaty quicker.