ROCKBROS 13427127002 Winter Motorcycle Cycling Headgear Mask with Filter Windproof Warm Face Neck Cover - Army Green •[Dual-Sided Condensation Valve] Our cycling mask features a dual-sided condensation breathing valve that closes during inhalation and opens during exhalation,ensuring a refreshing airflow without feeling stuffy. Enjoy comfortable breathing while you ride •[Enhanced Breathability] Equipped with breathable vents on both sides,this mask provides warmth without sacrificing ventilation. Experience easy and comfortable breathing,making it ideal for long rides in cold weather •[Helmet Compatible] Designed for versatility,this mask can be worn with helmets,offering both safety and warmth during your outdoor adventures. Stay protected while enjoying the great outdoors in chilly conditions •[Adjustable Nose Clip] The adjustable nose clip ensures a snug fit,preventing cold air from seeping in. Provides enhanced comfort and a secure seal,making it perfect for all outdoor activities •[Replaceable Activated Carbon Filter] With a replaceable activated carbon filter. The filter lasts about 30 days under normal conditions,while we recommend changing it every 2 days during high-activity periods. Breathe easy and enjoy cleaner air while riding •Specifications: •Size: One size fits all •Weight: About 112g •Material: Polyester + polar fleece lining •Features: Thickened and warm,with breathing valve,built-in filter Package included: •1 x Cycling Headgear Face Cover with Filter