Helium 450 Left Hand Zip - Vertical Baffles
Description
Mont Helium 450 is a lightweight down sleeping bag for fast-and-light hiking and alpine trips, pairing 800+ loft down with a Pertex Quantum shell for maximum warmth per gram. EN13537 lower-limit performance to -7 °C makes it a versatile 3-season option that still packs small and feels luxuriously warm when the mercury drops. Vertical torso baffles and Mont’s Radial Arc construction keep insulation locked over your core, while a full-length zip, 3D draft tube and oven-door foot vent let you fine-tune airflow from camp to hut. If you count grams but refuse to compromise on comfort, this is the bag you grab for crisp shoulder-season overnighters and high-country adventures.
Built with an ultralight 26 g/m², 10 D x 10 D, 520-thread-count nylon shell and filled with water-resistant, RDS-certified 800+ loft goose down, the Helium 450 balances durability, compressibility and dependable warmth. A differential cut reduces cold spots, the generous hood seals in heat, and YKK hardware runs smoothly when you need rapid venting. Supplied with a sil-nylon stuff sack for the trail and a cotton storage bag for at-home loft care.
Mont Helium 450 Lightweight Down Sleeping Bag Features
- 800+ loft RDS goose down with water-resistant treatment
- Ultralight Pertex Quantum shell, 26 g/m², 10 D x 10 D, 520 T/C
- Vertical torso baffles and Radial Arc Baffle System for superior thermal mapping
- Differential cut reduces cold spots and preserves loft
- Full-length YKK 5-gauge side zip plus foot zip for venting
- 3D zip draft tube and contoured hood for heat retention
- Includes sil-nylon stuff sack and breathable cotton storage bag
- EN13537 lower-limit rating to -7 °C
Specifications
| Intended Use | Lightweight hiking, alpine, 3-season |
| Temperature (EN13537) | Lower limit -7 °C |
| Insulation | 800+ loft RDS goose down, DWR treated |
| Shell Fabric | Pertex Quantum, 26 g/m², 10 D x 10 D, 520 T/C |
| Baffle Construction | Vertical torso baffles, Radial Arc, box-wall |
| Zip | Full-length YKK 5-gauge side and foot zips |
| Standard size weight | 450g fill, 850g total |
| Women’s size weight | 450g fill, 835g total |
| XL size weight | 550g fill, 1000g total |
| Approx. compressed size | 15 × 31 cm |
| Included | Sil-nylon stuff sack, cotton storage bag |
| Size Available | Standard |
Description
Description
Mont Helium 450 is a lightweight down sleeping bag for fast-and-light hiking and alpine trips, pairing 800+ loft down with a Pertex Quantum shell for maximum warmth per gram. EN13537 lower-limit performance to -7 °C makes it a versatile 3-season option that still packs small and feels luxuriously warm when the mercury drops. Vertical torso baffles and Mont’s Radial Arc construction keep insulation locked over your core, while a full-length zip, 3D draft tube and oven-door foot vent let you fine-tune airflow from camp to hut. If you count grams but refuse to compromise on comfort, this is the bag you grab for crisp shoulder-season overnighters and high-country adventures.
Built with an ultralight 26 g/m², 10 D x 10 D, 520-thread-count nylon shell and filled with water-resistant, RDS-certified 800+ loft goose down, the Helium 450 balances durability, compressibility and dependable warmth. A differential cut reduces cold spots, the generous hood seals in heat, and YKK hardware runs smoothly when you need rapid venting. Supplied with a sil-nylon stuff sack for the trail and a cotton storage bag for at-home loft care.
Mont Helium 450 Lightweight Down Sleeping Bag Features
- 800+ loft RDS goose down with water-resistant treatment
- Ultralight Pertex Quantum shell, 26 g/m², 10 D x 10 D, 520 T/C
- Vertical torso baffles and Radial Arc Baffle System for superior thermal mapping
- Differential cut reduces cold spots and preserves loft
- Full-length YKK 5-gauge side zip plus foot zip for venting
- 3D zip draft tube and contoured hood for heat retention
- Includes sil-nylon stuff sack and breathable cotton storage bag
- EN13537 lower-limit rating to -7 °C
Specifications
| Intended Use | Lightweight hiking, alpine, 3-season |
| Temperature (EN13537) | Lower limit -7 °C |
| Insulation | 800+ loft RDS goose down, DWR treated |
| Shell Fabric | Pertex Quantum, 26 g/m², 10 D x 10 D, 520 T/C |
| Baffle Construction | Vertical torso baffles, Radial Arc, box-wall |
| Zip | Full-length YKK 5-gauge side and foot zips |
| Standard size weight | 450g fill, 850g total |
| Women’s size weight | 450g fill, 835g total |
| XL size weight | 550g fill, 1000g total |
| Approx. compressed size | 15 × 31 cm |
| Included | Sil-nylon stuff sack, cotton storage bag |
| Size Available | Standard |
