The Helium 600 is a high‑performance four‑season sleeping bag built for cold conditions down to –10 °C, while still weighing just around 1 kg. Ideally suited for winter bushwalking, alpine missions above the snowline, and cold‑weather camping, it delivers exceptional warmth‑to‑weight efficiency through ultralight fabrics and premium high‑loft down.
A 10×10 denier, 520‑thread‑count nylon shell (26 g/m²) provides durability with minimal weight, finished with a hot‑rolled‑cire treatment to prevent down leakage. Inside, 850+ loft RDS muscovy down with a DWR loft treatment offers greater resilience, higher loft, and improved warmth in damp conditions.
The Helium series is designed for experienced users who understand how to safely travel light in cold environments. While the Helium 600 is rated to –10 °C, it is not recommended for alpine snow camping unless you are an experienced alpinist.
Features
Tapered Rectangular Shape — Wide foot section for natural movement and comfort.
Vertical Torso Baffles — Maintain optimal down distribution where warmth matters most.
Radial Arc Baffle System — Maximises loft height and thermal efficiency.
Differential Cut — Reduces compression and cold spots for consistent warmth.
Box‑Walled Baffles — Efficient warmth‑to‑weight construction.
Large Down‑Filled 3D Draft Tube — Retains heat along the full‑length zip.
Contoured Hood — Keeps down evenly distributed around the head.
Laminated 210D Anti‑Snag Zip Shield — Reduces snagging and improves durability.
Hydrophobic Epic Thread — Prevents moisture wicking through seams.
Tuck‑Stitched Seams — Increased strength and water resistance.
Full‑Length YKK Side Zip + Foot Zip — Dual sliders for ventilation and easy access.
Compression & Storage Sacks Included — Ultralight siliconised‑nylon Z‑Force compression sack and 50 L storage sack with care instructions.
Specification
Intended Use: 4‑Season Bushwalking
Season Rating: 4‑Season
Women / Cold Sleeper Comfort: –4 °C (25 °F)
Men / Warm Sleeper Comfort: –10 °C (14 °F)
Shell Fabric: 520 TC, 10×10 D ultralight nylon (26 g/m²)
Lining Fabric: 520 TC, 10×10 D ultralight nylon (26 g/m²)
Down Rating: 850+ loft premium RDS muscovy down
Down Treatment: Water‑resistant DWR loft treatment
Packed Size: 16×33 cm
Zip Side: Left or Right (Standard), Left (Women’s & Extra Large)
Zip Configuration: Side + Foot zips, YKK dual sliders
Colour: Orange / Black
Weights
Women’s: 600 g fill / 990 g total
Standard: 600 g fill / 1010 g total
Extra Large: 700 g fill / 1020 g total
