Specialized Transition brake question

Sorry for what may be a dumb question…I want to replace the stock pads on my 2008 Transition pro (the one with the f’ing stupid cantilevers…)…
Am I looking for shimano compatible pads?? Please don’t tell me it is a proprietary size I need to get from Specialized…

thx!!

Shimano pads should work fine. I’ve used shimano-compatible swisstop yellow king pads in the brake holders w/o issue.