While preparing for a trip, I found I needed another pair of shoe covers. While the ones I had before were not "Lewis N Clark", they were in fact the same item and I ordered a new set. Many of the shoe covers I found elsewhere on Amazon gathered gripes about being short - a problem for me with my size 14 feet - and many, inexplicably, were designed as a single bag with (maybe) a divider, restricting packing flexibility.

The Lewis N Clark covers worked well and protected my shoes well. I see no need to look elsewhere.