The heavy insulated liner is what you move up to when the fleece mid-weight isn't enough. Water-resistant shell, fleece-lined collar and sleeves, heavy insulation through the body — this is built for sustained cold below 20 degrees, not just a chilly morning that warms up by 10am.
 
The key feature most carriers don't know about: it zips directly into the USPS All-Weather Parka Shell to create a fully insulated system for the worst weather conditions on the calendar. Worn alone it still looks and functions as a proper uniform jacket.
 
Cold-weather construction:
 
• Water-resistant outer shell — sheds light precipitation
• Fleece-lined collar and sleeves — warmth where wind hits first
• Heavy poly-fill insulated body for sub-freezing temperatures
• Two interior storage pockets
• High-visibility striping for low-light routes
• Zips into the USPS Waterproof Parka Shell for a full insulated system
• Union-made
• Available in men's regular XS-4XL
Layering guide: Worn over a long sleeve shirt, this covers most winter conditions. For rain and heavy snow, add the Parka Shell over the top. For the most extreme cold, add the flat knit or bulky sweater underneath before adding this jacket.
 
USPS approved. Uniform allowance eligible.