Complete USMC Coyote 3 Season Sleep System (3S) USMC Bivy, Pack Liner, and Bag

Genuine USMC 3-Season Sleep System (3S) – Coyote Brown

Description

This listing is for the Authentic USMC 3-Season Sleep System (3S), the current generation modular sleeping setup issued to the United States Marine Corps. Specifically engineered for versatility in a wide range of climates, this system replaces the older green/black MSS with a more advanced, lightweight, and packable design. It consists of the 3-Season Sleeping Bag and the Waterproof Bivy Cover, both finished in standard Coyote Brown to match modern Marine Corps gear.

Components & Technical Specs

• 3-Season Sleeping Bag:
• Temperature Rating: Designed to keep the user comfortable down to approximately 10°F (-12°C) when used with appropriate layers.
• Insulation: High-loft synthetic fill that retains warmth even when damp.
• Design: Mummy-style with an adjustable hood and a "box-foot" bottom to allow room for boots or extra warmth.
• Waterproof Bivy Cover:
• Material: Constructed from breathable, waterproof GORE-TEX® (or equivalent) fabric.
• Function: Provides a barrier against rain, snow, and wind while allowing internal moisture (sweat) to escape, preventing the "greenhouse effect."
• Features: Integrated bug mesh at the face opening for protection in warmer, insect-prone environments.

Key Features

• Genuine USGI Issue: Manufactured by authorized military contractors for the U.S. Marine Corps.
• Modular Versatility: Use the Bivy alone for warm-weather concealment and rain protection, or combine it with the bag for cold-weather insulation.
• Coyote Brown Aesthetic: Uniform color across both pieces for seamless integration with ILBE or FILBE packs.
• Anti-Snag Zippers: Heavy-duty, dual-sided zippers designed for rapid entry and exit.
• Lightweight Efficiency: Significantly lighter and less bulky than the legacy 4-part MSS, making it much easier to carry on long movements.

Condition: Used by our Troops in Great Condition, all components are in great condition with no holes / tears, may be mildly dirty, Overall Great Condition.