Leather in the rain

In the Coast Guard, which operates in a pretty harsh environment, we use Neats Foot Oil on all of our leather.

on water proofing leather harness… any product that has petroleum base or drying agent in it will eat your stitching out and damage your leather. I have a set of harness I bought to prove it. You need to be careful even with NF as much of the new varieties contain drying agents and emulsifying agents which ain’t good for leather. I have used Lexon in the past on really dry leather which soaks in good to condition the leather first and get it flexible first before I apply a weather proofing but Lexon does not water proof it at all. Probably the best success I have had is a natural form of boiled linseed oil mixed with bees wax, no additives.. It will not sink in and soften the harness like lexon but it remains pretty much on the outer layer and sheds water really very well. It does remain slick and oily if that is a problem. I don’t have the kind of rain you have but will do harness about twice a year first with an oil that sinks in and softens and then with water proofing and sealing.
The NF will work though I have never used it myself again you need to get it without a petroleum base in it. It will sink in better then the linseed and beeswax but will likely need more applications to keep up the water proofing. Good oiling.
Ron McCoy