I found Kiwi Saddle Soap to be too harsh on shoes - wears off some of color dye from leather.  Fiebings Saddle Soap is so much better.

True test conducted over a two year period:

Experienced the following when applying both products on Tan color, Nubuck Leather Walking Shoes, Addiction by Brooks:

In instance when I applied Kiwi brand, it was soo harsh as to strip off some dye from leather - leather appears aged and further deteriorated after cleaning with this product.

In instance when I applied Fiebings Saddle Soap (available thru Amazon Prime), I was amazed at the difference.  The color dye was not adversely affected, leather appears "nurished" or restored and no foaming spray intended to nap-up Nubuck leather was required after cleaning - love the Fiebings Saddle Soap and results!!

Disclaimer:

You won't find the thin tins for Fiebings Saddle Soap on Amazon, i.e. Kiwi Saddle Soap.  A twelve once tin is the smallest size sold and fulfilled by Amazon.