Review on Nikwax 861 Conditioner For Leather by Juzer Rashid

I bought this to restore some Gore-Tex motorcycle boots that I've had for a few years and were in need of some maintenance. I loved it on the black Gore-Tex leather boots, the leather is soft again and a lot cleaner. I tried it on a pair of Frye Engineer boots and it darkened them noticeably, although it didn't really seem to care for them. I would suggest testing this on a very small area of leather boots you intend to use this on.