Originally, wicket-keepers used batting pads to protect their legs, but found the knee-protecting flaps interfered with their agility and ability to catch. There were also incidents where the ball lodged in the space between the flap and the wicket-keeper's leg. Modern wicket-keeper's pads are therefore smaller than batting pads, with insignificant knee flaps. Instead of three straps, these modern wicket keeping pads have two straps: one at the bottom and the other one just below the knees.