Thanks for everyone's input.
I am an active person that runs, walks, cycles, multiple times per week. I will be looking into the Pistolwear.com options.
Currently (as of today on my bicycle ride and walk with the wife), when running or walking, I have been using a home-made belly band. It consists of an ACE chest wrap, (6" wide) with a piece of swede leather sewn to the body side of it. On the out facing side, I traced the outline of my LCP and sewed several seams along the outline as well as reinforcement stitching. I wrap this around my waist, insert the LCP, pull up my biking bibs or running shorts and away we go. Used it 2x today. Don't really know it is there.
When using it as a BUG, I do the same but wear it under dress clothes with the LCP under my weak arm for cross draw use.
I have also done the run using my EDC combo which is a Springfield XD45c and a Crossbreed ST. When running with this, I first dawn a technical fabric tee, then the Crossbreed on my 511 holster belt. After that my running shorts and my running shirt. The technical tee keeps the belt and holster from my skin as well as wicking away sweat. This was FAR more comfortable than I would have imagined. Since this is the combo I wear everyday, as well as when shooting IDPA, (I shoot the XD9 those days) I am very comfortable with it. Draw is quicker than with the bellyband but it is larger and more difficult for me to pull off.(5'10" and 135lbs - difficult to conceal a double stack 45 in a tight fitting tee) Most days, I find myself working out with the LCP rather than the Springer.
Anyway, it is more about the carry method and getting comfortable with it than the weight of the gun.
Good luck in your search. I will be investigating some of the options listed here as well since my homemade bellyband is loosing it's elastic and needs to be rebuilt or replaced.
Dale