You don’t have to totally abandoned the Foot brand, but maybe just broaden it out to more parts of the body.
Also, maybe you can target a certain age group or certain type of people who do an activity.
For example, you can do Health & Recovery products for senior citizens or people who play certain sports. There are definitely some areas that are still wide enough in this realm.
I would agree that golfers have their brand loyalty for a lot of things, but there may be certain things that they use that don’t need to be branded. However, the number of those products may be limited. But if you have a “Lifetime Activities” brand that focuses on a few sports that people of all ages can play, there may be a niche there too.