Mini Dots- Oversized Dots or colored dots can be juvenile.
Lightly Embellished- This pair has a small tasteful cluster of jewels, avoid any overly-embellished!
Opaque- My personal favorite! In basic neutral colors like black, brown or grey
Fishnet-Like- So this one is tougher... a full-on fishnet tight can easily look cheap if you know what I mean. I love the fishnets that mix other patterns or have a smaller weave.
One question I receive a lot is about what legwear is interesting yet classy and age appropriate! My answers are above. Ladies, throw on a dress today and flaunt that fabulous legwear! Thoughts on a budget for hosiery: You can buy inexpensive hose if you aren't planning on wearing them weekly. The inexpensive pairs will sag and the elastic in the garment will break sooner. If you need something you can wear frequently, it is worth spending a few extra dollars.
Hand wash your hosiery and NEVER EVER put it in the dryer!