I personally own 4 pair of leggings that I consider work appropriate (and maybe I'm wrong), but here is my personal rationalization for how to make leggings look totally acceptable for the office.
1) Make sure that you either fully cover your front region or have a legging that has a true waist or buttons/zippers like a regular pant. Avoid camel toe.
|Shirt doesn't fully cover your front? Make sure your leggings have all the trimmings of real pants. via|
|This is a great example of a Not For Work moment (or anywhere?). via|
2) Make sure that you either fully cover your behind or have a legging that has pockets or other waist detailing like a regular pant.
|Wearing knit leggings without any pockets/waistband? Fully cover everything with an oversized sweater, tunic, or poncho. via|
3) Proportion: if you have form fitting bottoms, wear a loose fitting blouse or sweater on top.
|Not only would I dress like this every day, I kind of just want to be whoever this girl is. via|
4) Avoid colors and patterns. I prefer leather detailing if you are wearing cotton fabrics, or you can go full on faux leather for a look I consider fully work acceptable given you pair it with "workplace staple" pairings on top, such as a polished blouse or blazer.
Any opinions? Please share!