Gummi CareThere are two complete different methods of rubber care dry and wet.
Dry care: use baby powder or talcum for the inside of the rubber.
Wet care: use Rubber Spray to spray your rubber on economically. Or use silicone based lubricant (e.g. Eros or fuck) for the inside and outside. Wipe economically and wipe the excess with a soft rag. Both methods work good and increase the endurance of your rubber. You only have to decide between both methods.
Have a detailed look on our rubber care products here!