a year ago I bought this j frame airweight and I been seeing in youtube they make belly band holsters for conceal carry

the one I like is the one where you buy a kydex holster and put velcro on the back and then just velcro the holster to the belly band

I can not find a Kydex holster for the j frame airweight with a flat back on it to stick the velcro to it

they all have curves or belt hook on them which I don't want.

weighting for suggestions
Kyle