Within the fields of everyday carry and travel security, the zipper lock is a category whose core structure has rarely been reexamined. For decades, most designs have relied on keys or simple ...
The secret to a locking zipper is in the pull tab. You need to flip the tab down if you want the zipper to stay closed.
The Rubik's Cube of zipper locks boasts three (adjustable) levels of nuanced security, with fidgety bliss as a happy ...
Don't trust the expiration dates on supermarket coffee. If you're unsure of whether you're really getting fresh-roasted coffee for the best possible cup, use a zipper-lock bag for an overnight test.