Original Czech military issue model OM-90 mask kits.
Each kit consists of a rubberized bag, OM-90 mask, OF-90 filter, drinking tube-compatible canteen cap, and chemical poncho. Mask, filter and poncho are individually sealed.
These are Medium (Size 2) and will fit most adults.
Features of the OM-90 Mask Include
Forward-looking tempered glass eyepieces optimized for optical use.
Drinking tube system which is compatible with the camelbak system.
Center primary voice emitter.
5-point head harness.
Dual filter port design.
Oral nasal cup and an inner rubber seal.