The One Bag is the ultimate in flexible comfort, no matter the conditions. Whether you’re a beginner looking for options or a hardened camper who’ll be in a range of climates, this 800 fill ProDown sleeping bag is exactly what you need.

• Top layer TNF Features & Benefits 40-degree-rated Heatseeker Pro synthetic insulation for versatile use in warmer weather
• Mid layer TNF Features & Benefits 20-degree-rated 800 fill ProDown for superior performance in adverse conditions
• The two layers can be paired to get a 5-degree bag
• Down layer can be used as a stand-alone quilt for campsite lounging
• Large, fitted hood accommodates pillows and arms-over-the-head sleepers
• Top layer TNF Features & Benefits 40-degree-rated Heatseeker Eco Advanced synthetic insulation for versatile use in warmer weather
• Anti-compression layer on back is composed of Heatseeker Eco Advanced synthetic insulation
• Mid layer TNF Features & Benefits 20-degree-rated 800 fill ProDown for high-level performance in adverse conditions
• Vaulted footbox
• Compression sack is fleece on the inside so you can use it as a camp pillow
• Storage sack included
• Total Weight: 5°F - 3 lbs 12 oz (1701 g) / 20°F - 2 lbs 12 oz (1247 g) / 40°F - 2 lbs 3 oz (992 g)
• Temp Rating: 5°F / -15°C, 20°F / -7°C, 40°F / 4°C
• Temp Rating: 5°F, 20°F, 40°F
• Stuffsack Size: 11'' x 14'' (28 cm x 36 cm)
• Internal Length: reg - 80'' (203 cm) 
• 20-Degree Shell: 20D nylon taffeta with non-PFC durable water-repellent (non-PFC DWR) finish
• Max User Height: reg - 6'2'' (188 cm)
• 20-Degree Insulation: 800 fill ProDown; certified to the Responsible Down Standard (RDS) by Control Union
• Shoulder Circ: reg - 68'' (173 cm)
• 40-Degree Shell: 20D ciré nylon ripstop with non-PFC DWR finish
• Hip Circ: reg - 65'' (165 cm)
• 40-Degree Insulation: Heatseeker Eco Advanced 80% post-consumer recycled polyester
• Foot Circ: reg - 56'' (142 cm)