KEEN Women's Presidio WP Boot

I normally order Keen Presidio from a different company, but my size was out of stock so I found Moosejaw that does have my size. The only difference that Moosejaw use the word "WP Boot". I understood it is Waterproof, which other company, I don't buy waterproof shoes. The only size available from this company is waterproof. But why add the word Boot? Looks the same style as I normally get. One drawback between this company and other company even though same size and style except waterproof Moosejaw shoes feels like it is width instead of regular even though I ordered regular size. Customer Service assured me it is a regular size.