They used to survey the competitors at the IDPA national match and report what they were using. I haven’t seen a recent report but for years Comp-Tac was by far the most used holster manufacturer.
I would recommend searching some of the female competitors to see what they’re using for belts and other gear. Team Glock has Michelle Viscusi and Ashley Rheuark and formerly Tori Nonaka. I don’t know if Tori is still competing but there should still be posts about what she used. Gabby Franco is one of my favorite females in the sport she isn’t as accomplished in pistol as the Glock ladies but still an amazing professional marksman who knows what she is doing.
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