Gaiter (noun)

1. A covering worn over the shoe and lower part of the leg for protection in walking through mud or snow.
2. A protective cover for the ankle and lower leg worn by soldiers, hikers and cyclists.

Origin:

Late 16th century: from old french guêtre, of uncertain origin.

Examples:

1. He wore gaiters to keep his feet dry while hiking.
2. The soldier put on his gaiters before going on the march.
3. The gaiters helped to keep the snow out of her boots.
4. Gaiters are worn to protect the lower leg from scratches and cuts.
5. The cyclist wore gaiters to protect his legs from the chain.