The elastic headband strap is adjustable and non-slip, you can loosen or tighten the band to adjust the size, tightness and comfort, men and women to wear.Used in a Variety of Occasions: Perfect to use them when you are walking on your skis or snowboard, skiing, skating, climbing, riding your motorcycle/ATV, skydiving, bungee jumping, playing shooting games, do an experiment in a lab, work on a constructionsite or have a snowball fight. Get rid of the fear of wind, dust, cold air, snow, sun and harmful lights.Light weight, durable, breathable, warm, protects against winds, snow, strong light, etc. High Cost Montagite - High quality TPU frame with the best impact resistance and three-layer foam for comfortable wearing.Delivery quantity: 2 pieces,