For everyone looking to protect against knee impact and injuries during sports and activities. Highly fashionable and mashine washable. These sleeves are padded with the unique HEX™ technology created by McDavid. Hex Technology is superior, closed cell foam padding, uniquely and permanently bonded to our high quality hDc™ moisture management fabric. Our Hex Technology has been copied and pirated around the world, but we remain the leaders, the innovators and the preferred choice. Countless professional and amateur athletes choose to wear McDavid Hex Technology.