- This is an Online Exclusive Bonus Pack with 5 replacement Active Carbon filters
- Made of durable neoprene construction ideal for cold weather applications
- Dual-Exhalation Valve System removes moisture and keeps unfiltered air out
- Velcro closure system comfortably secures mask in place
- Includes 2 Replaceable 99.9% Active Carbon Filters - 3 HEPA Active Carbon Filters - Online Exclusive
Engineered to form-fit your face’s natural contours, the M1’s durable construction works double duty through every cold weather application. Keep your face warm with waterproof neoprene and keep your lungs protected with a 99.9% pure air breathing experience. Size references: Small/youth (up to 125 lbs.) Regular/large (125 lbs. to 215 lbs.) XL (more than 215 lbs.).