Boxers wear specific shorts that should fit comfortably around the waist and be tight enough to stop them from slipping down. The shorts should be lightweight and loose around the legs so that the boxer can move around freely. Boxers wear their shorts high to indicate their beltline, which makes it more likely for their opponent to hit below the beltline, resulting in a foul for a low blow by the referee. Boxers also wear groin protection cups and sometimes compression shorts under their boxing shorts. Groin protectors prevent fighters from sustaining severe injuries in the event of a low blow, while compression shorts assist with circulation. Female boxers wear groin protection specifically designed for them that tends to be lower profile. Boxers wear specific protective equipment, including gum shields and groin guards. Boxers wear big shorts to protect themselves from body blows by riding up the shorts.