These toeless tights by Wolford were perfect for me last weekend. I wore them with some strappy shoes and a mini dress for an evening out last weekend. They are made with two openings at the bottom of each foot- one for your big toe and the other for the rest. These were perfectly invisible so I could have the coverage for my legs yet still wear strappy heels without my toes covered in nylons and their seams.
I read a review that someone posted saying that the tights ran the first time they wore them, but I didn't have that experience. Certainly be careful putting them on because they are delicate. Mine are ready for another use whenever I want them. I saved the packaging and have folded them back onto it so I can tell them apart from the regular pantyhose in drawer.
Here's the sizing info on the back: