Rawlings Pro Preferred Leg Guards utilizes AIMS™: Advanced Impact Management System™ to improve protection. Impact absorbing foam in the knee. TRI-TECH™ Padding keeps air circulating between leg guards and body allowing cool air in and releasing the hot air. Conforming lightweight design for comfort and mobility. Pro Dri® covered adjustable internal padding for moisture management and comfort. Triple-knee design for protection. Patented Supertoe™ for ultimate instep protection. Toe Flap Strap stays in protective position whether you are crouched behind the plate or running to back up a play. Size: Adult 17.5" Length, Age 15+.