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, stuck at an airport or staying warm on an overnight ferry. 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). RDS-certified, 650+ fillpower duck down with a non-PFC Ultra-Dry Down treatment to stay drier in damp conditions Includes a recycled 20D polyester shell with a non-PFC DWR finish and a 20D polyester liner for pure comfort The full-length zipper and footbox drawcord can be opened for ventilation, or to zip two Travellers together, or to turn the Traveller into a quilt The shoulder drawstring allows you to cinch the Traveller close when temperatures are cooler than expected Sea to Summit Guarantee is offered for the Lifetime of this product BEST USE Any outdoor adventure COMES WITH Ultra-Sil(TM) Compression Bag & Storage Cell INSULATION RDS certified, 650+ PFC free Ultra-Dry Down SHAPE Hybrid Quilt 45AdegF REGULAR 45AdegF LONG BAG WEIGHT 1lb 3.3oz 1lb 5.8oz COMPRESSED VOLUME 3.5 L 3.8 L COMPRESSION SACK 5 L 5 L FILL WEIGHT 8.1 oz 9.3 oz FITS UP TO HEIGHT 6 ft 1 in 6 ft 6 in TEMPERATURE RATING (EN LOWER LIMIT) 45AdegF 45AdegF WOMEN&';S TEMP RATING (EN COMFORT) 51AdegF 51AdegF