Sea To Summit Traverse Series XTII Short Right Zip

 X activity sleeping bag

The Traverse series is our most versatile bag, designed for a broad range of activities in a variety of environments, filled with 850+ Loft European Goose Down protected by our patent pending 3D NanoShell™.

Designed with a relaxed mummy shape, the Traverse series offers comfort in the widest range of temperatures. With the ability to be opened out into a full duvet when sleeping in huts and zippered up for winter camping in sub zero conditions the Traverse series can be used all year round. The oversized neck-collar and hood-seal, keep drafts out, minimizing heat loss around the face. The oversized zipper draft tube is fitted with the lightest and stiffest anti-snag material, for smooth operation. A security pocket located inside the bag is easily accessible, ideal for stowing electronics to preserve battery performance in extreme cold. Using a side block baffle construction to maintain a 60/40 fill ratio more down is located in the top of the bag for maximum insulation. The soft touch lining fabric is down proof by construction and highly breathable offering a comfortable sleep.

The Traverse series is our choice for trekking the Annapurna circuit in the Himalayas, ski touring hut to hut in the Alps and walking the Western Arthurs in Tasmania.

Relaxed Mummy Convertible
The Traverse relaxed mummy shape is cut with a larger hood, broader shoulders and large chest to provide a more comfortable sleeping bag while maintaining thermally efficiency. The addition of a full length side and foot zip allow for conversion from a traditional winter mummy shaped bag to a duvet offering the greatest versatility in a cold weather sleeping bag.

warmest, technically advanced, most versatile sleeping bag with a separate foot zip.

Features:Relaxed mummy convertible, 3D NanoShell™, differential cut shell with 3D side walls, offset baffles, 60/40 fill ratio, side block baffle, anatomically tapered foot, zip draft tube with anti-snag, neck draft tube with dual elastic adjustment, cushioned internal hood drawcord with dual adjustment, 2 way YKK #5 zips with separate foot zip, medium sized internal zip pocket, includes lightweight Ultra-Sil® compression bag, mesh storage cell and laundry bag.

Down: 850+ Loft 95% European Goose Down
Fill weight: Short 520 g/18 oz | Regular 540 g/19 oz | Long 580 g/20 oz
Bag weight: Short 1140 g/2 lb 8 oz | Regular 1210 g/2 lb 11 oz | Long 1340 g/2 lb 15 oz
Length / zip options: Short - right zip | Regular - left or right zip | Long - left zip
Season ratings: Spring/Autumn/Winter
Suggested use: Lightweight trekking, Hiking, Snow camping, Ski touring, Base camp
Compression bag: Medium - 15L to 5L

EN13537 Temperature Rating System

EN13537 is a European standard for sleeping bag temperature ratings.

Everyone sleeps differently; some people are very warm sleepers while others feel the cold easily. There are many factors that affect your warmth and comfort in a sleeping bag. An important factor is that you use a good insulating mat, so your body heat isn’t drawn into the cold ground you are sleeping on. Other factors include your tent or shelter, gender and metabolism, clothing, sleeping bag liner, use of the hood and your daily calorie intake.

Although the EN13537 standard does not identify a single precise temperature a tested sleeping bag is suitable for, it does provide an industry standardised temperature range that a typical user can refer to as a guide for the conditions their bag will be most comfortable in.

The EN13537 standard provides three temperature levels to guide a consumer in their choice

Comfort - the temperature at which a standard woman can expect to sleep comfortably in a relaxed position. If you consider yourself a cold sleeper use this rating to decide the coldest temperature the sleeping bag is suitable for.

Lower Limit - the temperature at which a standard man can sleep for eight hours in a curled position without waking. If you consider yourself a warm sleeper you can use this rating to decide the coldest temperature the sleeping bag is suitable for.

Extreme - this is a survival only rating for a standard woman. Between the lower limit and the extreme rating a strong sensation of cold has to be expected and there is a risk of health damage due to hypothermia. This is an extreme survival rating only, we do not recommend you rely on this rating for general use.