You can adjust your position while maintaining a defensive stance.
Prerequisites: Dex 15, Dodge, Mobility, Spring Attack, defensive stance 3/day class feature.
Benefit: While in a defensive stance, the character may take one 5-foot adjustment each round without losing the benefits of the stance.
Normal: Without this feat, a character can’t move while in a defensive stance.
Source: Standard Reference Document under Open Game License v1.0a, which updated this feat originally published in the Epic Level Handbook, page 63.