Abstract: A sunshade apparatus for shading a chair has a flexible canopy element, and a support structure for supporting the flexible canopy element above the chair. A pair of attachment elements is attached to a bottom ends of a pair of vertical support legs of the support structure. Each of the attachment elements includes a pair of clamp elements that each include a clamping end opposite a lever end, the clamping ends of the pair of clamp elements together being shaped to engage the chair. A hinge connects the clamp elements, and a spring biases them towards a closed position.