Brine King Flex G3 Shin Guards Moldable to your shin Includes pocketed compression sleeves Moisture management backing NOCSAE - Approved The ultimate in lightweight protection equipment. The King Flex G3 is moldable to your shin resulting in a perfect fit. Constructed with Brines moisture management technology for optimal performance. The King Flex G3 gives you protection and comfort so you can focus on the game, not your equipment.