Sno-Seal and warm sun:
Highest and best use of snoseal!
Put it on slippers in the desert. It works!!
You're just a denier!
Get used on the LL Beans, hikers, and hunting boots also.....................since the 1970's for me.
Oil softens mine up too much and as someone else has noted, can rot stitching.
If I had some bear grease I'd mix that with some beeswax and be done with it too.