I think it also helps that when Spanx would go viral there was already a product available, so it would be less lucrative for a knockoff to enter a competitive

I think it also helps that when Spanx would go viral there was already a product available, so it would be less lucrative for a knockoff to enter a competitive market. When this guy's boots would go viral there was nothing to buy, so if a knockoff could get to market faster they'd get the sales.