A stable, rigid belt is the foundation every other piece of your competition rig depends on — holster, mag pouches, and accessories all perform better on a belt that doesn't sag or twist under load. Ben Stoeger Pro Shop stocks the two-part rigid belt systems that dominate USPSA and IPSC competition, from Double Alpha Academy, CR Speed, and Safariland.
Both DAA and CR Speed make premium two-part rigid belts with similar performance. The key thing to know: each brand's holster and pouch attachment hardware is designed for their own belt system — a CR Speed C-BAX hanger is built for a CR Speed belt, and a DAA Lynx hanger is built for a DAA belt. If you're building a rig from scratch, pick one ecosystem and build within it rather than mixing brands.