Nicknamed "Buckets" for his big hands and the way he was able to mark the ball with ease, Loewe debuted in 1986 for the St Kilda Football Club after being recruited from Mount Eliza. He played junior football for P. & C. Junior Football Club based in Delacombe Park, Frankston, where his large size helped him excel in the position of ruckman, though he was also known for his poor kicking that would plague him throughout his AFL career.
At centre-half-forward, Loewe formed a lethal forward-line partnership with full-forward Tony Lockett. He had an awkward kicking style which sometimes resulted in missing easy shots, but his ability to kick long goals and consistent contested marking more than made up for it.
He went on to enjoy a great career, winning All-Australian selection in 1991 and 1992, winning the E. J. Whitten Medal in 1992 and co-captaining the side from 1996 to 1998.