I'll be taking a 2 day welding class at the Marc Adams school in May. Instructor says long sleeve cotton/denim shirt and jeans are fine, but I'm thinking I may want a smock or apron or jacket. What do you folks wear?

Won't be doing tons of welding, mostly MIG and maybe TIG for repairs and small fabrications around the home and shop.

Also, for something like the miller or lincoln jacket, is a loose or snug fit better?