A harness should always be used in mountain climbing for safety, as it is attached to a rope to save you from falling. Different style harnesses can be used for different types of climbing. Make sure your harness fits comfortably around your waist and thighs. Ideally, your harness should match your body shape and climbing style. Finding a harness that fits you well is important. If it's too tight it will restrict your movement possibly pinch you and if it's too loose it will slip and in an inverted fall, it could possibly let go of you. Make sure your harness and buckles are secured properly, so read the instructions that come with it. Fit, racking system and padding are more important than the weight of the harness. Harnesses come in various materials, designs and styles.

