KEENMen's Revel III Mid Height Waterproof Insulated Hiking Boot

I see the size chart and it has plenty of sizes, but no width choices. how can i specify that i need 4e width?

In one description it says the leather is synthetic, in another that it's nubuck leather. Which is it, real leather or synthetic? Thanks.

Are these made in the USA?

im going to be hiking through water, will it soak through eventually?