gai·ter 
(gātər)
(gātər)n.
1.
a. A heavy cloth or leather covering for the leg extending from the instep to the ankle or knee.
b. A similar covering of moisture-resistant fabric, used by skiers and hikers.
2. An ankle-high shoe with elastic sides.
3. An overshoe with a cloth top.
4. A tubular collar fitting closely around the neck, often worn by skiers.
[French guêtre, from Old French guietre, of Germanic origin; see wer-2 in the Appendix of Indo-European roots.]
gaiter