Ok, That can happen if you are not wearing socks or 5fingers are a little big.
I did lot of research to find a alternate.
A barrier cream is a topical formulation used in industrial and medical environments to place a physical barrier between the skin and contaminants which may irritate the skin and cause contact dermatitis or occupational dermatitis.
Barrier preparations which can be a cream, ointment or aerosol spray often contain substances which repel water such as silicon, zinc oxide or dimethicone. Typical applications are in occluded skin-to-skin contacts such as body folds or flexural areas. A common use for barrier creams and ointments is nappy rash or diaper rash.
Zinc Oxide is an alternative.
I studied the ingredients on many different products. In the end the Bodyglide SPF 25, Anti-Friction & Sun Formula looks great multiuse product. Footglide is similar w/o sunscreen. Google it for reviews.
Active Ingredients: Benzophenone 3 (5.5%) (Sunscreen), Octyl methoxycinnamate (7.5%) (Sunscreen), Octyl Salicylate (Sunscreen), Zinc Oxide (1%)??
Inactive Ingredients: Aloe Vera Extract, Bisabolol, C18 36 Acid Triglyceride, Caprylic/Capric Triglycerides, Tribehenin, Tocopheryl Acetate
Note: Bodyglide original anti chafe doesnt contain zinc oxide. The active ingredient is Allantoin.
I also came across old threads where use of zinc oxide as deodorant is discussed.
I think zinc oxide may not be as durable as silicone lubricant but it looks like a good alternative.
Edit: Dermatone Zcote looks even better.
The sunscreen component -Zcote is actually microfine zinc oxide. So total percentage of zinc oxide is much higher.