Shop this look for $446: http://lookastic.com/men/looks/overcoat-and-double-breasted-blazer-and-tie-and-skinny-jeans-and-boots-and-dress-shirt-and-gloves/2086 — Camel Overcoat — Navy Double Breasted Blazer — Burgundy Tie —
Shoes: There are several options of shoes that could work for a conference. Just find a pair comfortable for all day wear - remember, conference halls involve a lot of walking.