I only wore these once for a two-hour test hike on a local low mountain. They are almost new, but the straps inevitably get dirty. The Helium Gaiters are waterproof, lightweight mountaineering gaiters. ■Brand: OUTDOOR RESEARCH ■Product Name: Helium Gaiters Men's ■Product Number: 19846202 ■Color: Black ■Size: M (25-27cm) / Upper Width 22 × Lower Width 20-23 × Total Length 40cm *Measured by flat lay. Please allow for slight variations due to wrinkles, etc. ■Material: Upper Leg Panel Material / Pertex Shield Diamond Fuse 2.5-layer 30-denier ripstop nylon Foot Panel Material / PU-coated 420-denier packcloth nylon Composition / bluesign approved 100% nylon Made with Pertex® Shield Diamond 2.5-layer, they are thin, ultra-lightweight, and excellent in waterproofness and breathability. They are designed to be worn for long periods with trail running shoes or lightweight hiking boots. The Helium Gaiters feature a hook-and-loop front closure, elastic material around the entire back of the heel, and a drawcord at the upper hem for a secure and comfortable fit. They can be stored compactly and carried in a backpack without taking up much space. The Helium Gaiters perform in all situations, such as thru-hiking, backpacking, and day hiking.