Ultralight gaiters suffer a variety of limitations, not the least of which are durability, maintaining long-term water-resistance, and closure failures. If you abuse gaiters via bushwhacking, mountaineering, or snow travel with traction spikes, consider the Outdoor Research Verglas. They are the lighest fully-waterproof breathable calf-height gaiter available that also have a Cordura lower section and Hypalon under-foot strap for long-term durability.