Developed from the Ultra Tacks design, the new Super Tacks offers the same fit and level of protection. With improvements across the line and more D30 Smart Material to enchance the level of protection. It'S taking the Tacks line to the next level. Dual Molded Anatomical Exposed HD Foam Anatomical Design with D30 Block Shot Protection PE Cap with Reinforced D30 Smart Material Reinforced Wrapping Lock Strap Anatomical Removable Liner with Segmented Velcro Shin Padding and Knee Cut-Out