Lay the moistened rice paper on a flat surface. The wrapper should still feel somewhat stiff when you first start working with it. By the time you finish filling it, the wrapper will be soft.
Place marinated vegetables, some mango, sliced avocado and 2 slices of chicken in the middle of each piece of rice paper. Top with mint and cilantro leaves. Fold the bottom of the rice paper over the chicken and vegetables, tucking in the vegetables snugly. Fold both sides in and continue rolling like a tiny burrito. Set each summer roll on a serving platter as you complete it