The best training is competition, as anyone who regularly competes can confirm. When you go into a competition, you want to be as well prepared as possible. Two things are certain: you'll gain experience and push yourself to limits you rarely reach in normal training. However, before competing, you need the right training clothing. Tight-fitting training shorts are great for hiking, running or trail running, where they can be worn as the only layer. You can also wear them under loose-fitting trousers for winter hiking.