Siwon is best known for his "handsome appearance" and muscular physique. His looks have earned him spots on various idol "best" lists, such as being put at eleventh place in the show Idol Chart's "Most Flawless Body" list. His body is often referred to as the best by his fellow Super Junior members and many fans, and he is sometimes called "sculpture man" because his body appears "perfectly chiseled out." His fans also comically refer to his abdominal muscles frequently as "chocolate abs." He is also the tallest among Super Junior members along with Zhou Mi from Super Junior-M, standing approximately 183 centimeters tall.
