I remember the product you're talking about , just not the name . Basically , it was a cover that slipped over the boot and had a very soft padded bottom that muffled the sound of your foot steps . If your lady love is halfway handy with a sewing machine she could make them for you , tell her to use a 1,000 denier Cordura nylon fabric for the sole for durability , with 1-2" poly batting for the filler . It would look something like sandals with a very soft sole when she's done . Velcro strips could be used as attachment straps .