Grimmjow is a tall, muscular man with light blue spiky hair and light blue eyes, the latter including green lines below them, similar to the eye markings on the Panthera genus of cats.

His attire consists of a white hakama, a black sash and a ragged white jacket with an upturned collar. The inner lining of his jacket is black,the  sleeves rolled up and leaving it open to expose his muscular chest. 

His Hollow mask is on his right jawbone and his Hollow hole is located on his abdomen. 