These black and white toe socks are high quality and very comfortable. I have wild fashion colored ones also, but they are not as warm as these heavier socks.
I wear slip on shoes and sandals most of the time. You can wear toe socks with almost any type of sandal, even if they have a thong between your toes - I call this feature 'Flipflopability'. Flipflopability is the reason that toe socks are very popular in Japan. Some of the highest quality ones are made in Japan.
Toes socks keep your feet warm but allow the perspiration to be wicked away from the skin in order to evaporate.
My toes socks are cotton with elastic to prevent sagging. They can be machine washed and dried.
In toe socks, each toe feels special - It is like having their own compartment on a train versus having to share space on a crowded bus. Wearing toe socks is closer to being barefoot. Your toes don't feel tied up - they can wiggle independently.
When you wear toe socks you can grab pencils off the floor with your toes - this is very difficult when wearing ordinary socks.
There are many varieties of toe socks: anklets, calf high, over the knee, even tights. Some come primarily in solid colors but with different colored toes.
In some stores, it is easier to find toe socks in children's rather than adult sizes. Toe socks are more expensive than ordinary socks because there is more labor involved and they are a specialty item. Despite the higher price, it is worth investing in several pairs.
Please note: The photo is for illustration purposes only - I usually wear a matching set.