Infini2 2-Pack Neck Warmer Outdoor Sports Windproof Dust-Free, Walking, Cycling, Skiing, Running, Motorcycle Gaiter Face Mask for Men & Women Size: Adult, One Size fits most. Also fits Juniors and Teens The Softest and Warmest Neck Warmer, 100% Breathable Microfiber Polyester (Keeps you warm while staying thin) Extreme cold weather, Lightweight & breathable Neck Warmer Wind Resistant. Keeps you warm in Winter and reduces humidity in Summer. Windproof and dustproof, comfortable and ideal Face Mask for runners, riders, cyclists, hiking, fishing, skiing and other outdoor activities.