US Military Polar Fleece Overalls

ECWCS Fleece Bib Overalls

These black polar fleece bib overalls are the insulating mid-layer of the US military's Extended Cold Weather Clothing System (ECWCS), the layered kit soldiers wear in serious cold. They go under a shell trouser and trap warmth around the legs and lower torso, the area a jacket alone leaves exposed. Hunters, winter campers and anyone working outdoors in freezing weather get a warm layer built to a military specification.

Features

• Polartec Classic 200 Fleece — A midweight polyester polar fleece that stays light and breathable and keeps insulating even when it gets wet.
• ECWCS Mid-Layer — Issued as the insulating layer of the Extended Cold Weather Clothing System, worn between a base layer and a windproof or waterproof shell.
• Bib-Style Cut — The raised front and back panels cover the stomach and lower back, so cold air cannot get in at the waist when you bend or reach.
• Adjustable Elastic Suspenders — Stretch shoulder straps with quick-release buckles let you set the fit and unclip them in seconds.
• Full-Length Side Leg Zippers — Zippers along the outer side of each leg open the overalls wide, so you can pull them on or off over boots.
• Front Zip Fly — A long front zipper runs down the bib to the fly for easier dressing.
• Quick-Drying Polyester — The fleece dries fast in the field and needs no special care at home.
• Black Colorway — Plain black that sits unseen under any outer shell, whatever its color or camouflage pattern.
• Made In USA — Originally manufactured in the United States for US military issue.

How The System Works

ECWCS is built on layering: a base layer against the skin, a fleece like this one for insulation, and a shell on the outside to block wind and wet. Worn as a complete system, ECWCS is intended for cold weather protection down to -40°F (-40°C). These overalls are genuine government-issue kit, made to the military's own specification rather than a commercial approximation of it, which is why they appeal to cold-weather users and collectors alike.