The Lightweight Environmental Protection (LEP) is an insulation subsystem developed under the Special Operations Forces Personal Equipment Advanced Requirements (SPEAR).LEP consists of 7 garments designed to provide protection to -40°F (-40°C).The system is designed to be individually configured based upon mission, terrain and climate requirements as well as personal preference...

The undershirt and the drawers are intended for wear as a moisture wicking layer of the ECWCS...

The undershirt and the drawers are intended for wear as an insulation layer of the ECWCS...

The bib overall is intended for wear as an insulation layer of the ECWCS...