In demanding conditions, waterproof/breathable fabric preserves the integrity of down.  With a Membrain shell and the highest quality down available, the Helium EQ is a versatile, ultra-light bag for mountaineering and back packing.

The Woman's Helium adds insulation where women need it most for warmth down to 15 degrees.  At less than 2 lbs., it's ideal for lightweight mountaineering and backpacking.

Plenty of living space, bomber-construction and two big vestibules with a minimal sacrifice in weight, the Thor 2P is a classic mountaineering tent.  (color/terra cotta)