Since that incident, I have bought several more pairs of your shorts and pants and have used them in over 10 countries, including high-crime areas like Manila and New Delhi. They have never let me down even the one time a guy on a Jeepney near the rough Ermita area of Manila unbuttoned my back pocket, but fortunately couldn't also get the zipper without me noticing. There was nothing in there but some coins so no issue as I usually utilize the awesome small zipper in the front pocket where it is almost impossible to get to without cutting the pants.
Best wishes for Clothing Art's continued success and always keeping travelers' pockets around the world safe and sound in their journey!
Editor's Note: This comment came via a Facebook post. This is your first known stop in the Philippines!
--- We followed up via email with Walter M. ---
Dear Clothing Arts,
While in the Philippines I was confronted with one of the local tricks when riding a Jeepney. Someone drops a few coins on the floor and when you try to help them pick up the coins, a pick-pocket puts his hands in your pocket and tries to relieve you of your cash or wallet.