There are several pieces of gear that you need in order to practice de sport. Check our article on getting your first set of rock climbing gear to know more about it. For those who do not have enough time to read another article, the short answer for outdoor bouldering is as follows: Approach shoes Climbing shoes Climbing chalk (where it is allowed to use it) Brushes to clean the holds Comfortable climbing clothes Drinking water Something to clean your shoes with (helpful but not vital) A friend to spot/film you (helpful but not vital) Multiple cameras to document your awesomeness for the gram.