Nike's Protegga Shield shin guards offer an anatomical fit for outstanding protection and a lightweight feel. These durable guards have multi-point adjustments for a customised and more secure fit. The Protegga Shield shin guards from Nike have a ventilated shell and extended foam padding to combine protection and airflow. The bottom part of the guards are boot shaped for a better fit inside your boots. Size guide: S - 3'4-3'8 (104-116cm) M - 3'8-4'3 (116-128cm) L - 4'3-4'8 (128-140cm)