Abstract: A sport sock with an integral shin guard has a series of inflatable bladder elements positioned next to and affixed to an inner surface of the sock material to overlie the shin of a wearer and perform a guard function when inflated. The bladder elements are inter-connected and may be connected to a small, manually-operated pump that is located at the rear upper portion of the sock. A pair of upper and lower inflatable straps are affixed to the sock material and encircle the leg. The straps are also inter-connected to the bladder element so that they inflate and deflate in coordination with the bladder elements and retain the sock on the leg when inflated.