Should I get a nylon/velcro belt or a leather belt?

Across the reviewers we read, the consensus is that nylon belts (like the Element 26 or Gymreapers Quick Locking) are more comfortable, easier to adjust, and better suited to CrossFit, Olympic lifts, and general training, while stiff leather prong or lever belts give maximum rigid support for heavy squats and deadlifts. Specialist communities like r/powerlifting and r/naturalbodybuilding generally recommend a 10mm leather belt for serious powerlifting and a nylon belt for everything else.