Shin guards are designed to protect the lower leg and knee from contact with pucks, sticks and collisions. Choosing a good shin guard is essential in proper leg and knee protection. To determine your size, measure the length of the shin when your leg is bent at a 90 degree angle from the center of the knee cap to the top of the boot of the skate.
A proper fit enables the knee to sit directly in the center of the kneecap. The length of the shin guard should extend the entire length of the leg, touching the top of the skate. If the shin guard is too long, the skate will push it up; however, a correctly sized shin guard fits comfortably under the skate tongue without shifting, although some players prefer to wear the shin guard over the tongue.
Look for a shin guard that has frontal protection, as well as protects the back of the leg. Make sure to test out the straps of the shin guard to ensure a tight enough hold to keep the pad in place.