Business Casual Dress for Women
Business casual is crisp, neat, and should look appropriate even for a chance meeting with a CEO. It should not look like cocktail or party or picnic attire. Avoid tight or baggy clothing; business casual is classic rather than trendy.
Khaki pants, neatly pressed, and a pressed long-sleeved, buttoned solid shirt are safe for both men and women. Polo/golf shirts, unwrinkled, are an appropriate choice if you know the environment will be quite casual, outdoors or in a very hot location. This may not seem like terribly exciting attire, but you are not trying to stand out for your cutting edge look, but for your good judgment in a business environment.
Shoes and Belt
Wear a leather belt and leather shoes. Athletic shoes are inappropriate.
Cost and Quality
You are not expected to be able to afford the same clothing as a corporate CEO. However, do invest in quality that will look appropriate during your first two or three years on the job for a business casual environment or occasions.
Everything should be clean, well pressed, and not show wear. Even the nicest khakis after 100 washings may not be your best choice for a reception. Carefully inspect new clothes for tags, and all clothes for dangling threads, etc. (as with interview attire).
Use common sense
If there are six inches of snow on the ground and/or you are rushing to get to an information session between classes and you left home 12 hours earlier, no one will expect you to show up looking ready for a photo shoot they'll just be happy you made it. Just avoid wearing your worst gym clothes and jeans. If you show up at an event and realize you're not as well dressed as you should be, make a quick, pleasant apology and make a good impression with your interpersonal skills and intelligent questions.
Specifics for women's business casual
Don't confuse club attire with business attire. If you would wear it to a club, you probably shouldn't wear it in a business environment. Also, most attire worn on television is not appropriate for business environments. Don't be deluded.
Pants and Skirts
Women can wear casual pants or skirts. Neither should be tight. Fabrics should be crisp; colors should generally be solid; navy, black, gray, brown and khaki are always safe bets. For the most business-like appearance, pants should be creased and tailored; neither extreme of 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.
Skirt length and slits
Your skirt should come at least to your knees while you are standing. While you are seated, your thighs should be covered. If your skirt comes to just below the knee, a slit to just above the knee might be acceptable. A very long skirt should not be slit to above the knee. Generally slits in the center-back of a skirt to facilitate walking a stair climbing are acceptable. Slits to facilitate a view of your legs are not appropriate for business purposes. Slips should not be visible.
Shirt and Sweaters
In addition to tailored shirts or blouses, tailored knit sweaters and sweater sets are appropriate business casual choices for women. Cotton, silk, and blends are appropriate. Velvets and shimmery fabrics suitable for parties are not appropriate. Fit should not be tight. Cleavage is not appropriate to business and job search occasions.
Jewelry and Accessories
Wear a conservative watch. Jewelry and scarf styles come and go. Keep your choices simple and leaning toward conservative. Avoid extremes of style and color. If your industry is creative, you may have more flexibility than someone pursuing a conservative industry.
Keep makeup conservative and natural looking. A little is usually better than none for a polished look. Nails should be clean and well groomed. Avoid extremes of nail length and polish color, especially in conservative industries.
Should be leather or fabric / microfiber. Appropriate colors are black, navy and brown (to coordinate with your other attire and accessories); white and pastels are not appropriate. For the most conservative look, toes should be covered. Sandals which are neither extremely dressy or extremely casual might be appropriate. Thin straps and high heels are not appropriate. Chunky heels and platforms are not appropriate. Make certain you can walk comfortably in your shoes; hobbling around a job fair in shoes that are pinching your feet does not convey a professional image.
Not essential for business casual, but are recommended if your skirt is knee length (rather than calf length) and in more formal environments such as hotels.
Purse or Bag
If you carry a purse, keep it small and simple, or carry a small briefcase or business-like tote bag in place of a purse. A structured bag tends to look more professional that something soft or floppy. Purse/bag color should coordinate with your shoes. A briefcase is certainly not necessary for most business casual events. Leather, microfiber and fine wovens are appropriate. Canvas and straw are not appropriate.
Should be clean and neat.
Should be in polished condition. Make sure heels are not worn.
No missing buttons, no lint; and don't forget to remove external tags and tacking stitches from new clothes.
Clothes should be clean, neatly pressed, and fit properly, neither tight nor baggy.
Perfume should be used sparingly or not at all. No odors on clothes. Don't smell like smoke.
Preferred over a bulky briefcase. A small briefcase is also appropriate, but if you have no reason to carry a briefcase, don't; you risk looking silly.
Appropriate to carry to an information session held on campus (after all, you are a student). For career fairs and job fairs, bookbags are generally checked at the door, and you should carry a padfolio only. Don't carry a bookbag to an event held at a hotel.