The Boundary 20 Sleeping Bag was designed to offer warmth and comfort during year-round trips. The Slumberloft synthetic insulation and layered, quilt construction provide enough warmth and resist enough cold to make this sleeping bag rated for temperatures as cold as 20°F. The lockable, anti-snag zippers feature a draft tube that keeps cold air out and prevents heat loss. Lockable zippers prevent accidental opening due to movement while sleeping. The flip-over hood is fully insulated to keep your head and neck warm, and can be turned inside out to expose its flat or contoured side. While the flat surface is more suitable for warmer nights, the contoured side will retain more heat when the temperature drops. A draft collar on the hood creates a barrier of insulation for your chest and neck, and the fabric is treated with durable water repellant. Includes a storage bag.