FEATURES of the Arcteryx Men's RHO LTW Neck Gaitor Insulated with naturally anti-microbial, moisture wicking merino wool Lightweight and low profile makes it easy to take anywhere Blended elastane material makes it all stretchy and stuff Keeps snow and wind off your face while keeping the warm air in Compact and warm for bitter winter days Lightweight neck gaiter in Merino wool with a bit of stretch This merino wool/spandex neck gaiter keeps out snow and traps in body heat Built with highly durable top performance materials but designed with a streamlined minimalist set of features to provide very light weight