The North Face Solar Flare -20F Down Expedition Sleeping Bag

• Temperature Rating: 20F ( -29C )
• Total Weight: 4 lbs 2 oz ( 1875 g )
• Max User Height: 6 ft ( 183 cm )
• Shoulder Circ: 64 in ( 162 cm )
• Hip Circ: 60 in ( 152 cm )
• 800 Eastern European goose down fill
• Durable, light, waterproof, breathable Shadowlite HyVent shell fabric
• Oversized, down-filled, ergonomic draft tube
• Single-point, hidden cord lock adjustment
• Nylon mesh storage sack and compression sack included

For mountaineering and other sub-zero sleeping conditions, zip up in The North Face Solar Flare sleeping bag. It's rated to sleep in temperatures down to -20F and is fully waterproof. The 800 fill down makes the Solar Flare superbly lightweight, weighing in at only four pounds two ounces. Zip up for full weather protection, the over-sized draft tube prevents weather for entering the bag through the zipper. An ergonomic footbox allows for your feet to have room without creating empty spaces that lead to chilled air. The Solar sleeping bag is a mountaineer's dream come true, a sleeping bag that you will actually get some sleep in.

Climashield Prism

Prism remains the best option for The North Face's best option for their core backpacking sleeping bags du to its unsurpassed loft and warmth. After 100,000 compression cycles, Prism retains 79% of its initial loft, more than any other insulation tested. Wet performance is also the best of any insulation tested - at 85% of dry clo - and Prism's continuous filaments facilitate vapor transport away from the sleeper and out through the shell fabric. Additionally, Prism performs exceptionally well in its compressed states, Climashield Prism in the body-mapped, anti-compression zones of The North Face technical down bags.

800 Down Fill Power

For Expedition bags, where warmth is a paramount, The North Face relies on premium-quality 800 fill down. Highly compressible and offering an exceptional warmth-to-weight ratio, it is the perfect fill down the bags on which so much depends.

HyVent

A superior, waterproof, breathable technology utilizing a polyurethane (PU) coating that consists of a tri-component, mutli-layer formula for waterproof protection, moisture permeability and durability. Lab and field tested to ensure the best possible durability and function. To test the level of waterproofness, The North Face subjected HyVent garments to 20 wash cycles, where garments retained an average of more than 60 PSI on the waterproofing Mullens Test.

Trapezoidal Baffles

Expredition Down bags utilize a special trapezoidal baffle system in which adjacent trapezoid-shaped baffles are positioned with their parallel sides opposite one another. This configuration ensures a constant baffle volume, which holds the down in place and prevents cold spots.