If you are looking for a strong clip-in point for your lead, Look no further!
This Belt-clip has no velcro, It folds over your belt from the inside and loops onto itself (see images)
It is Rated for 4,000Lbs plus... The only limit to this, is the pants that you are wearing. 
(Fair warning, a dog can rip the belp loops of your pants clean off... make sure your pants are suited for your activities in public...)
 
Comes in Military colors with a selection of clipping options.