Not fully leather!! vinyl in upper and tong - Vasque ST Elias FG GTX Hiking Shoes - Men's

I have to say that I have had these coots for over a year now and never had a problem. Relatively low win weight, breath well for a leather boot and are very comfortable. Many trips throughout NZ, US, and Australia to back this. However, i thought it may be time to treat these great boots with some NikWax conditioner. Bad Move. The parts that are Vinyl melted away before my eyes, completely dissolved. I am not blaming either company for this other than i would have like some warning that the vinyl was so low quality that it could not stand up to a normal Nikwax treatment.

In the end, good boot BUT do not treat them with any type of leather conditioner or they will fall apart.