Mountain Equipment Helium 400 Women's Sleeping Bag

The Helium 400 uses 403g of 700-fill power DOWN CODEX-approved duck down and a 100% recycled Helium 20D outer fabric, making it warm, lightweight, and ultra-compressible. Ideal for backpacking and cycle touring, it's sized efficiently, easy to pack, and perfect for chilly nights.

The slant-baffle construction enhances warmth and packability while preventing down from shifting and creating cold spots. A four-baffle foot system ensures extra warmth around your feet, and a five-baffle hood keeps it down where it’s most needed for optimal comfort.

The 100% recycled Supersoft 20D lining with Fluorocarbon-free DWR is breathable and durable for a comfortable night's sleep. The full-length Gemini™ zip baffle minimizes heat loss and won't snag, while the low-profile magnetic Lode Lock™ closure and drawcords are easy to use, even in the dark.

With its Alpine 2.0 fit, the Helium 400 balances thermal efficiency and weight. Offering a Good Night’s Sleep Temperature of -5°C (23°F), it’s great for trips to colder climates or higher altitudes in early spring and autumn.

Features

• Lightweight and breathable 100% recycled HELIUM 20D outer shell with FC-free DWR
• 367g of 90-10 Pure Duck Down with 700 fill power for warmth
• Women's Alpine fit with EXL® system to enhance thermal efficiency
• Slanted box-wall baffles for even insulation
• Mid-level side seams for a comfortable fit
• 5-baffle anatomically shaped hood for head warmth
• 4-baffle foot-box for improved warmth at the feet
• Full-length Gemini zip with 140cm baffle and integrated neck collar with Lode Lock closure
• 100% recycled Supersoft 20D lining with FC-free DWR
• Comes with a waterproof roll-top stuff-sack and storage cube
  

Specifications

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Technology

	Down Cycle The recycled Down Mountain Equipment comes from post-consumer goods—unwanted clothing and bedding collected by waste recycling companies.
	A Good Night's Sleep Guaranteed We are so confident that our sleeping bags will keep you warm and comfortable that, in addition to the EN13537/ISO23537 laboratory ratings we quote, every Mountain Equipment sleeping bag comes with a separate ‘A Good Night’s Sleep Guaranteed’ temperature rating.
	Down 700 Down is the finest insulator. Manmade insulations cannot match its warmth-to-weight ratio, compressibility, long lifespan, and softness. Duck Down is great for insulated clothing and equipment for all but the most serious expeditions.
	Helium Helium fabrics are exceptionally light, compressible, and soft. Their densely woven construction ensures the highest levels of down-proofing and wind resistance.
	Fair Wear Fair Wear ensures that the clothing is produced under high standards that promote ethical working conditions.