Quarter socks are a type of sock that covers the foot and ankle, typically rising just above the ankle bone. They are shorter than traditional crew socks, which usually cover the calf, and can be worn with a variety of shoes, including sneakers, loafers, and sandals. Quarter/anklet socks are popular for athletic activities as they provide some protection and support without adding extra bulk or coverage. They are also a good choice for warmer weather as they allow for more air flow around the ankle.