... if you're referring to the elastic-based belly gun holders.... not the best idea imho when you plan to be out hiking...at least in hot weather.....
the sweat factor is something you might want to consider.... my belly-bander got really uncomfortable once I got heated up...I used it once (about 4.5hours) and really hated that thing absorbing the sweat ...
a small gun like the lcp or anything like it may be better in a good pocket holster (my absolute favorite) or iwb ...
there are some interesting holsters to see at Alabama Holster Co ... Link Removed ...they do a real nice job on kydex holsters that do NOT absorb ... they make pocket types, iwb, owb, paddles, and others
good luck with your decision...