Helium 400 XXL
The ‘gran turismo’ of the Helium range. Wider and longer and offering exceptional comfort and performance for long-distance backpacking and trekking.
|Additional Image Block||Optimised Helium, Inner Outer Fabrics, Trapezium 4|
|Activity||Adventure Race, Recreation/Travel, Summer Backpacking, Bikepacking, Summer Alpinism|
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Helium 400 XXL
|Length Inside (a)||220cm/87in|
|Max Width Inside (b)||84cm/33in|
|Inside Foot Width (c)||57cm/22in|
|Max User Height||205cm/81in|
|Total Bag Weight||1030g/36oz|
Helium fabrics are exceptionally light, compressible and tough. There densely woven construction ensures the highest levels of down-proofing, wind resistance and resistance to heat loss.
Our high-quality duck down has an actual minimum down cluster content of 90% and is DOWN CODEX approved.
By utilizing slanted box-wall baffles throughout the entire main body of our Helium bags meaningful weight is removed from the bag’s structure. On the very lightest models, further weight savings are gained by the use of stitch-through baffles. The use of mid-level side-seams affords great versatility whether the bag is laid on its front or back and this is also reflected in the distribution of fill which, whilst slightly favouring the top side allows plenty of fill to remain in the underside, foot piece and hood.
Weighing just 38g/m2, HELIUM™ 20 uses 20 denier yarns to create a fabric that is compressible, tough, and extremely comfortable. Its densely woven construction ensures the highest levels of downproofing, wind resistance and resistance to heat loss. The new HELIUM™ 20 offers greater handfeel over previous HELIUM™ fabrics as well as reduced seam slippage, resulting in even greater durability than the previous fabric.
Supersoft™ 30 is our legendary performer chosen for its breathability and durability. Weighing just 49g/m² provides exceptional durability with a soft hand and good breathability.
A four baffle foot piece featuring our unique Bulls Eye™ Technology and offset Sharks Toe™ foot that is engineered for our lightest technical sleeping bags. Its baffle construction restricts down migration whilst keeping weight and bulk to a minimum.