The Big Agnes Lost Ranger 15 is a versatile 3-season sleeping bag designed to adapt to a variety of temperatures. This unique sleep system combines two integrated down sleeping bags with the Big Agnes Padlok Sleep System, offering three different configurations for optimal comfort. Whether you're camping in warm summer nights or braving colder conditions, this sleeping bag provides the flexibility you need. Its lightweight design and down-fill insulation ensure comfort and adaptability for any camping or backpacking adventure. Offers three sleeping bag configurations for diverse temperature conditions Big Agnes Padlok Sleep System keeps you securely on your sleeping pad Adjustable Pad Cinch System fits various pad sizes for added stability Offset quilting minimizes cold spots for maximum thermal efficiency Inner bag features a jacket-style hood for head warmth Outer bag includes no-draft collar, wedge, and dual side zippers Hand tuck pockets in the outer bag provide extra warmth Two-wa