Now Go-lite is an interesting little company. First brought to my attention a couple of years ago by a writer at GQ in London, Go-lite was founded in Colorado circa 1999 by Kim and Demetri “Coup” Coupounas.
After several gruelling trips, most notably the summating of Mt. McKinley in 1997, where they hauled 60lb packs on their backs and 100lb sleds behind them, the couple decided to fabricate a solution to the burden of hauling overweight equipment on expeditions.
Starting out with an integrated system of 12 ultra-lite backpacking products, Go–lite now produces a full range of clothing, equipment, and footwear for adventure racers, backpackers, hikers, trail runners, back- and cross-country skiers, snowshoers, cyclists, alpinists, and even elite military personnel.
Valhalla 2+

I have camped with the two-part ‘Shangrila 3’ for the past three years and have found it a great choice so I was eager to try out the recently developed one-piece Valhalla 2+.
She weighs in at 5 lbs, 2 oz./2.32 kg and sleeps two comfortably; three at a push.
All in all I was very impressed. It is very simple to erect, even single handed. It is roomy and has entry points either side as well as sizable porches to store excess gear, boots etc. and a full wall bug net if you like to sleep under the stars.
Unfortunately for me (but great for the test), the entire gear test took place over several days of torrential rain and the Valhalla stood up well. There was very slight leaking, so I’d advise (as do Go-lite) to use a seam sealer if you plan to make prolonged trips in damp climates.
Adrenaline 0°

The sleeping bag I opted for on this excursion was the Adrenaline 0°, an 800-fill goose down sleeping bag weighing in at 2 lbs, 12 oz./1.25 kg with a rating of –17C or 0 F. This trimmer mummy bag boasts waterproof Pertex® Endurance surrounding the head and foot that protects against condensation in critical areas.
My favourite part of this bag — and to be honest, what I think sets it apart from other bags I have used in the past — is it’s central zipper that is designed to provide an efficient solution to core temperature regulation, that in my opinion provides for a comfier sleep if, like me, you like to sleep on your side.