2 New sets of 2 brake pads each, 4 pads total (opened packages so I could not return them). $15 for all.
These were $33 with tax recently ordered from Big Shark bicycle.
Kool-Stops have the most stopping power of any brake pad. These are for any traditional center or side pull brakes on most urban, fitness and all older road bikes. This version with the salmon color compound is well known for its considerable superiority when wet or damp.
This is the most significant braking safety upgrade you can make, short of completely changing your brake equipment components, which can get expensive if possible at all.