The Traveller sleeping bag is great for a summer yurt trip, El Camino pilgrimage, bike tour, or as a lightweight backpacking sleeping bag. It's also perfect for those times when you didn't think you had the room for a sleeping bag but needed one, like impromptu couch surfing, being stuck at an airport, or staying warm on an overnight ferry. The 650+ fill PFC-free Ultra-Dry Down keeps you warm on cooler nights, and a full-length zipper allows for ventilation in warmer temperatures and lets you couple two Travellers together.