A double-walled epithelial capsule that is the bulbous closed proximal end of the kidney tubular system. It surrounds the cluster of convoluted capillaries of KIDNEY GLOMERULUS and is continuous with the convoluted PROXIMAL KIDNEY TUBULE.

Synonyms: Capsule, Bowman, Bowman Capsule, Bowmans Capsule, Capsule, Bowman's, Bowman's Capsule