Cool Knit® Bottom (FR) Size:X-Small Functions as both a negative

Functions as both a negative and positive pressure mask

It comes with preformed Kydex insert(s) and strip(s) which allows you to customize how high or low the magazine sits inside the insert while providing extra retention

swimming or detaining personnel

Extremely lightweight and compact

Optional diopter lenses optimize operator preference for visual acuity

Cool Knit® Bottom (FR) Size:X-Small Functions as both a negativeThe Massif Cool Knit Bottom, made with DuPont Nomex brand fiber, is Massif's lightest flame resistant performance base layer. The perfect base layer, Massif Cool Knit Bottom aggressively wicks sweat away from your skin, keeping you cool and preventing saturation. The lightweight four way stretch bottom has a trim fit, keeps its shape over time, and is highly compressible for easy stuffing when you're living out of a pack. Constructed with DuPont Nomex