GoLite Adrenaline 4 Season Down Sleeping Bag

Built to excel on winter ski tours and in frigid camping conditions, our most efficient 4-Season mummy cut features a center front zip, making it ideal for back and side sleepers.

Materials:
800+ Fill Power Goose Down Renewable Insulation; 100% Tier 1 Recycled 22 Denier Polyester Fabrics; Diamond Ripstop Shell; Ripstop Lining; Waterproof-Breathable Pertex® Shield Eco Hood and Foot Protection.

EN13537 Temperature Rating
Comfort	Lower Comfort Limit	Extreme
-5ºC	-12ºC	-31ºC
For comparison purposes we quote the Lower Comfort Limit

Our Verdict

The Adrenaline Series are GoLite's premier ultralight bags, the 4 season bag here is the heaviest and rated for the coldest weather. The Pertex Shield head and foot protectors add weight but deliver real benefits - that extra bit of protection against moisture while not compromising the bags breathability.

The short central zip doesn't allow venting of the bag which is a compromise. 

Features

• Overstuffed draft collar, secondary draft tube around face opening, and double draft flaps on the main zip seal out the cold
• Center-front zipper with top snap for venting is always easy to reach and prevents a hard pressure point when sleeping on your side
• Single pull cinch on the snug-fitting SkullGlove hood for ease of adjustment
• Arid Zones™ with Pertex Shield Eco waterproof-breathable fabric at the head and foot of the bag protect against condensation in critical areas
• 6"/15 cm stretch baffle spacing, differentially cut with 7"/18 cm total loft
• Dependable YKK zipper with reversible slider backed by snag-resistant guard on draft tube
• Vertical and horizontal chambers and baffles optimize down distribution for maximum warmth
• Internal and external hang loops for drying and storing
• Upgraded with 100% Tier 1 Recycled shell, lining, Arid Zone™ and stuffsack fabrics
• Super-premium 800+ fill power Eastern European goose down - the loftiest fill power sustainably harvestable
• Waterproof recycled nylon stuff sack and breathable cotton storage sack included

We use premium Eastern European sourced 800+ and 650+ fill power goose down in different products depending on the design and end-use. Down is still the most thermally efficient insulation available, providing more warmth for its weight than any other insulation available. Down is also superior in its drape, comfort, lifespan, and compressibility. All of our down is renewably managed using a hypoallergenic processing technique. 800 Fill Power 800+ fill power down is more compressible and provides a greater loft to weight ratio than 650+ fill power, and is used in our highest performance down products. We specify a 90/10 cluster to feather ratio for optimum loft and recovery. 650 Fill Power Our 650+ fill power down is 15% loftier than the industry standard 550+ fill power down and exhibits excellent compressibility and recovery characteristics. We process it to an 85/15 cluster to feather ratio to emphasize maximum recovery from compression.

Our newly developed Tier 1 recycled polyester and nylon materials test to the same high standards as their conventional, non-recycled alternatives.  We use them because of the massive reductions in energy use and resource consumption required to produce them vs. the virgin, petroleum-based alternatives.  More information can be found under ‘Performance Technology’ within ‘The Meaning of Lite’ section of the GoLite website.

Specification - Regular Bag

• Colour: Pinot/Grease
• To Fit: Up to 6'
• Weight: 1350g / 3lb 0oz;
• Fill Weight: 880g of 800+ European Goose Down
• Headline Rating: -18ºC
• Comfort: -5ºC, EN13537 Tested
• Lower Limit: -12ºC, EN13537 Tested
• Extreme: -31ºC, EN13537 Tested

Specification - Long Bag

• Colour: Pinot/Grease
• To Fit: Up to 6' 6"
• Weight: 1465g / 3lb 3oz 
• Fill Weight: 965g of 800+ European Goose Down
• Headline Rating: -18ºC
• Comfort: -5ºC, EN13537 Tested
• Lower Limit: -12ºC, EN13537 Tested
• Extreme: -31ºC, EN13537 Tested