Edge recommends this liner for tricks because of the stiffer support around the ankle.  The Aqua liner can be worn for tricks if the skier likes a more flexible feel around the ankle. 
The lightweight lace up style liner has a low volume mid-foot and high-density toe box to provide a closer fit and features ventilation holes in the toe box, and a durable, Velcro adhesive, alternative thickness cuff wrap.
This model can be worn out-of-box, as well as heat molded for custom fit.