Armasight M/L EXFIL LTP M/L Polymer Black The EXFIL LTP (Lightweight, Tactical, Polymer) bump helmet provides impact protection for maritime environments and a stable, comfortable platform for mounting night vision and other accessories. The built-in NVG shroud utilizes an integrated machined aluminum shroud insert. The helmet features a Zorbium foam liner along with a CAM FIT Retention System with easily adjustable Cam Lock sliders and a micro-adjustable BOA Fit System.