These XRD leg guards are now powered by the new PORON XRD, which on impact causes the high performance molecules to create a unique protective shield that can absorb up to 90% of the most intense force, hit after hit. The conforming lightweight design and triple knee design gives you the mobility and protection you need to rise above your competition. These Leg Guards also features AIMS (Advanced Impact Management System), which maximizes performance by utilizing innovative technologies to match the demands of today's athlete. The most important feature of today's baseball and softball catcher's are control, mobility, protection, and comfort.