USGI Intermediate Cold Weather Sleeping Bag — -10°F Rated. Standalone or System Component.
The USGI-style intermediate cold-weather sleeping bag — heavy-insulation mummy-style bag rated down to around -10°F (-23°C). Run it solo for hard cold-season use, or layer it inside the USGI Modular Sleep System with the patrol bag and BiVy cover for sub-zero conditions.
⚠️ Cold-Weather Bag Only: This is the intermediate cold-weather bag as a standalone. No patrol bag, BiVy cover, or compression sack included. Pair with the matching components for the full MSS system.
• Heavy-Insulation Cold-Weather Bag
Engineered for serious cold — heavy synthetic insulation, full-length insulated draft tube, and mummy shape to lock in warmth in freezing conditions.
• -10°F Comfort Rating
Rated down to around -10°F (-23°C) when used solo. Layered inside the full USGI Modular Sleep System with BiVy cover, range extends well below for extreme cold.
• Modular Sleep System Compatible
Built to nest inside the USGI Modular Sleep System — works as a standalone heavy bag, or as the cold-weather layer of the full 4-piece system.
• Mummy-Style Hood & Shape
Insulated hood with adjustable drawcord locks heat around the head. Mummy taper reduces empty air space inside the bag for better warmth retention.
• Heavy-Duty Field Construction
Built from rugged nylon shell with reinforced stitching and a full-length zipper with insulated draft tube to block cold infiltration.
Perfect For:
Cold-season & winter field camping · Replacement cold-weather bag for USGI MSS · Sub-zero deployments · Mountain & backcountry overnight · Hunting camps · Bug-out & survival kits
Product Specifications:
- Type: Intermediate cold-weather mummy sleeping bag
- Comfort Rating: ~-10°F (-23°C) solo, lower when layered
- Compatibility: USGI Modular Sleep System
- Hood: Insulated, adjustable drawcord
- Closure: Full-length zipper with insulated draft tube
- Color: Black
What's Included:
✔ USGI-Style Intermediate Cold-Weather Sleeping Bag
❌ NOT Included: Patrol bag · BiVy cover · Compression sack






