Abstract: Leg warmers which include a panel having at least one layer of thermal insulation and a closure system. The panel is designated to wrap around the wearer's leg from foot to crotch, and the closure system provides an essentially moisture and airtight seam between the edges of the panel. The leg warmers feature: (1) the combination of a zipper-type fastener and a pile- or snap-type fastener which holds the leg warmer on the wearer's leg, making it easier to start and close the zipper; (2) multiple zipper slides which also make it easy to provide ventilation; (3) pile-type fasteners at the bottom of the leg warmer which allows it to be adjusted to a snug, air, snow, and moisture excluding fit with the wearer's leg; (4) an adjustable suspender for attaching the leg warmer to the wearer's belt and thereby holding it up; and (5) various combinations of the foregoing, innovative features.