Chameleon two-sided fleece jacket can be worn as the independent insulation layer over combat shirt or thermal underwear. In rainy weather it also can be worn as the insulation layer under "Poseidon" jacket.
Boot covers with insulation are meant to be used together with boots in order to prevent feet freezing during stands or short hikes. Due to advanced ultralight Primaloft insulation covers help to keep feet warm.
5.45 Design insulation booties with rigid sole are designed for overnights in a sleeping bag, but also can be used for transitions to a temporary camp during a mission, when regular boots require drying after a march.