In case you haven't heard, leggings are not pants. They're just not - sorry. I've been saying this for years people and I'm not changing my stance. But really, I guess it's only fair that give a discussion of various leg coverings.
I'll admit, I'm not sure if the line between pants and not pants should be above or below jeggings. The case for jeggings as pants would be their structure with pockets and stitching and their thickness. The case for jeggings as leggings is their Lycra and spandex content. Although not all jeggings are created equal I do feel for the most part their structure allows for better bottom and lady bits area coverage than actual leggings so I'm willing to let them slide. Sigh. I do think they look better with a longer top.
So right now it's obviously too hot for tights but I actually wear leggings a lot in the warmer months - it helps make dresses I find a tad short more wearable, it protects my legs from being attacked by bugs when outdoors and to be quite frank I find wearing cotton leggings to keep me more comfortable when it's really hot out than having sticky, hot skin stick together.
But pants, they're an important part of any girl's wardrobe so lets discuss.
Dress pants are fully lined and are often part of a suit although they can be a stand alone piece. Sometimes nicer slacks and dress pants can be very similar. And wouldn't you know it, I don't have any pics of myself in a suit. So moving on. . .
Slacks are my business casual uniform. They can be a formal as a lined, heavy weight fabric or as casual as a lightweight wrinkle free fabric. Because of their broad definition I live in slacks. Also, I really don't find the more casual ones more or less comfortable than jeans so I rarely change if I'm going out after work and wear them on the weekends when my jeans aren't clean. I typically wear with a top and cardigan with either heels or dressy flats. I also tend to only wear slacks if I'm going to an actual event vs running errands or grabbing a casual meal.
Khakis / Linen Pants:
These two have similar rules. I tend to think of khakis as warmer weather wear but I will wear them into the fall when it's still warm but linen pants are a no-no. Depending upon how they are paired I think khakis can be just as nice looking as a pair of slacks or just as casual as a pair of jeans, dittio for linen pants. I find linen pants to be the most comfortable clothing item to wear during the hot and humid summer.
I wear my linen pants a lot on the weekends after they're too wrinkled to look nice at the office but before the go to the cleaner to look crisp again.
Most offices allow jeans on "casual Friday". Work jeans should be of a darker wash, without cuts, holes or flashily embellishments. Personally I like the Talbots trouser cut jean for work with a dressy top and a low heel - basically I dress like I would any other day at the office only I wear jeans. Jeans are also often the unofficial uniform for casual outings. Ask a female friend what they're wearing to a social gathering and chances are "jeans and a cute top" will be your answer. When I recently went shooting jeans were my unquestionable choice.
So there you have it, examples of actual pants and where and when to wear them. If it is too complicated for you then please, stick to dresses.