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