Perfect for the submission specialists, these shin guards use a comfortable neoprene backing to let you grapple freely during MMA training. This neoprene has an open back that offers better ventilation than full neoprene sleeves. Both the top and bottom of the neoprene backing are adjustable via hook-and-loop strap. The instep padding is divided into two sections for more contoured protection, so there's no small gap in between shin padding and instep padding like some lesser shin guards.