The Complete USMC Coyote Brown 3 Season Sleep System (3S) is a modular sleeping kit designed for comfort and protection in moderate climates. It provides warmth, moisture resistance, and compact storage for field operations.

• Pattern: Coyote Brown
• Material: Water-resistant nylon shell with insulated sleeping bag liner
• Function: Three-season sleeping system for field and deployment use
• Compatibility or Design: Includes Improved Bivy Cover, 3-Season Sleeping Bag, Compression Bag, and Black Mesh Storage Bag

Issued to U.S. Marine Corps personnel as part of the 3S field sleep system.