Is it possible to have professional-level protection and increased comfort in the same shin guard? With the TACKS XF series, it is. These shin guards are designed with our maximum ASD (Anatomical Shield Design) coverage and adhere to the highest protective caps and panels standards. Their D3O® Zero technology and JDP anatomical knee provide maximum impact resistance while offering the skater freedom and flexibility of movement. The straps and ADPTFIT liner complete the ultimate comfort of these shin guards while ensuring they stay in place.