The REI Co-op Helio Down 40 sleeping bag is ultralight and packable—ideal for travel, fair-weather camping or as a liner inside another bag to boost warmth on cold nights. FILL. 600-fill-power duck down (RDS certified and bluesign® approved). WEIGHT. Long: 1 lb. 10 oz. Regular: 1 lb. 7 oz. COMPRESSED VOLUME. Long: 4.6 liters. Regular: 4.2 liters. TEMPERATURE RATING (F). 40 degrees (F)

• Water-resistant 600-fill-power duck down compresses small and excels in wet conditions
• Long side unzips into a quilt
• Short side-zip works as both a vent and armhole
• Roomy mummy shape won't cramp your sleeping style
• Differentiated draw cords (one round, one flat) let you adjust the hood and neck easily in the dark
• Durable water repellent finish on the polyester shell resists moisture and stains
• Included stuff sack compresses for packing; mesh expansion allows breathable storage
• Made to reflect our love for people and the planet through the use of bluesign®-approved materials and RDS-certified down
• bluesign-approved materials conserve resources and protect the health of the environment, workers and user (you!)
• The Responsible Down Standard (RDS) requires that ducks and geese are treated in accordance with leading animal welfare standards