You are able to jump through the shadows more often each day.

Prerequisite(s): 4th-level shadowdancer

Benefit: The total amount of distance that you are able to jump each day using your shadow jump ability increases by 10 feet per level of shadowdancer you possess, to a total of 420 feet at 10th level of shadowdancer. These additional feet of distance may be used normally or in conjunction with the Improved Shadow Jump and Swift Shadow Jump feats in order to jump more quickly.