Recommendations for Leather Boot Waterproofing?

Received a pair of leather boots as a gift, and am wondering how to waterproof them? Anybody have recommendations?

By the way--for all you folks committed to buying US-made products--this company makes really super-high quality boots and shoes (for men and women) in Pennsylvania. Each pair is handmade. The business is Vintage Shoe Company--been around for over 100 years and still going strong. :) (No, I don't work for them!)

I'd make a quick call to Vintage Shoe Company, I bet they have a particular waterproofer to recommend with their leather.

Thanks, Duane. I wrote them and they recommended Meltonian products. Specifically:

http://www.amazon.com/gp/product/B00...JQ1N3EYDZS69JD

and

http://www.amazon.com/Meltonian-Wate...sr=1-1-catcorr