The perfect chair for any outdoor adventure. we have taken the patented dual lock technology one step further by making it 2 inches wider than the standard dual lock, raising it 1 inch higher, and increasing the weight capacity to 400 pounds! Therefore creating an xxl dual lock chair. Still locking in the folded position for easy carrying and locking in the open position for maximum seat and back support. The larger frame provides spacious comfort for any outdoor enthusiast.