For the spray, do you have to rub it into the bag with a cloth, or just spray it on? I rarely take my lambskin bags out because I'm afraid of water getting on it. Tia!Yes it is safe. I've used it on many lambskin bags and all my lamb shoes. But it protects against rain/wetness, nothing else. Then after every 3-5 uses, bottles advises user to re-spray. If gets wet, wipe dry then when dry, must re-apply to be protected against wet.