Tailored pants suits are appropriate for women. Pants suits can be an excellent choice for site visits, particularly if the visit involves getting in and out of vehicles and/or the site is (or includes) a manufacturing plant or industrial facility. If you wear pants, they should be creased and tailored, not tight or flowing. If you are pursuing a conservative industry and are in doubt, observe well-dressed women in your industry on the job, at career fairs, at information sessions, etc.