USGI Intermediate Cold Weather Mummy Sleeping Bag (OD Green) - Used

USGI Intermediate Cold Weather Mummy Sleeping Bag (OD Green) - Used

The USGI Intermediate Cold Weather Mummy Sleeping Bag is a legendary piece of field gear originally developed under the classic M-1949 and early modular sleep system lineages. Purpose-built to keep U.S. troops warm in austere, freezing environments, this rugged survival bag is officially rated to sustain comfortable core temperatures down to $15^\circ\text{F}$ ($-9^\circ\text{C}$).

Constructed with an anatomically sculpted "mummy" silhouette, the bag tapers from a wide shoulder box down to a compact foot box, minimizing dead air space to optimize heat retention. The interior is packed with thick, high-loft 1000% premium polyester fiber filling that retains its thermal insulating properties even when exposed to high humidity or damp field conditions. The outer skin is fabricated from a wind-resistant, heavy-duty water-repellent nylon fabric designed to handle rough ground friction.

In Used military surplus condition, these sleeping bags carry the character of active field service but remain completely operational. Every bag is fully inspected to ensure the zipper works flawlessly and the insulation maintains excellent loft. Expect standard signs of prior deployment, such as light cosmetic fading of the Olive Drab shell, minor surface scuffs, or handwritten soldier numbers on the stenciled text blocks. They are free of major holes, structural tears, or broken hardware.

Technical Specifications & Features

• NSN: 8465-01-049-0888 (Explicitly assigned to Sleeping Bag, Intermediate Cold).
• Condition: Used (Authentic military surplus; fully tested for zipper function and thermal insulation loft).
• Color: Olive Drab (OD) Green.
• Dimensions: 93" Long x 35" Wide (Oversized cut fits soldiers up to 6'2" comfortably with room to layer clothing).
• Insulation Core: 100% Polyester Fiber Filling (Resists flattening and maintains insulation when damp).
• Outer/Inner Shell: High-tensile, water-resistant woven nylon fabric.
• Design Features:
• Heavy-Duty Front Quick-Egress Zipper: Outfitted with a massive, center-running metal zipper protected by an insulated storm flap to eliminate cold draft lines. Features an easy-grab tab for rapid exit maneuvers.
• Anatomical Hood Cinch: Features an integrated drawcord perimeter around the hood, allowing the operator to cinch the opening down to a small breathing hole to seal in maximum body heat.
• Box-Foot Construction: Designed with a roomy, structured foot box that prevents cold spots caused by toes pressing against the insulation fabric.
• Integrated Tie Tabs: Fitted with heavy-duty exterior fabric loops to tie the sleeping bag securely inside a canvas bivy cover or standard military shelter-half tent.
• Authenticity: Genuine United States Military Issue (USGI) / Originally manufactured under official Department of Defense contracts.

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