Mountain Equipment Helium GT 400 Sleeping bag (-5°C/23°F)

A light, versatile and highly packable bag with a little more space for added comfort. The ideal choice for backpacking and travelling through summer and cooler spring nights.

With a more generous fit than the standard Helium range, the Helium GT series are designed for extended use and are especially comfortable for those who like a little more room to move. Using 449g of minimum 700 fill power DOWN CODEX-approved duck down and a high-performance, 100% recycled Helium 20D outer fabric, the Helium GT 400 is efficiently sized, supremely comfortable and low in weight for backpacking and cycle touring, while still being warm enough to cope with chilly nights.

Slant-baffle construction through the body to maximise warmth, improve packability and prevent down migration, keeping you warm night after night and preventing cold spots. At the foot of the bag a four-baffle system focuses essential warmth around your feet, while in the hood, a five-baffle system optimises comfort and keeps the down exactly where it needs to be.

Inside the bag, a 100% recycled Supersoft 20D lining fabric with PFC free DWR offers breathability and durability for comfortable nights and a long lifespan, while a full-length Gemini™ entry zip baffle practically eliminates heat loss in this vulnerable area and is stiffened so it won’t catch in the zip. The low-profile magnetic Lode Lock™ closure and collar drawcords are effective and easy to use in the dark.

Designed with a more generous GT Fit, the Helium GT follows the same tapered shape as the Alpine fit but with a wider profile that doesn’t sacrifice performance. With a Good Night’s Sleep Temperature of -5°C (23°F), the Helium GT 400 offers reliable warmth for extended backpacking and travelling through the spring and summer months.

Features

• 100% recycled HELIUM 20D outer shell is very light and highly breathable with FC free DWR
• 449g of 90-10 Pure Duck Down with a minimum fill power of 700
• GT fit is roomy comfortable and allows for a variety of sleeping positions
• Slanted box-wall baffles throughout
• Mid-level side seams
• 5 baffle anatomically shaped hood
• 4 baffle anatomically shaped and offset foot-box
• Full length Gemini zip baffle with 140cm zip and integrated neck collar with Lode Lock closure
• 100% recycled Supersoft 20D lining fabric with FC free DWR
• Supplied with waterproof roll-top stuff-sack and storage cube

Temperature ratings

Comfort

0°C/32°F

Comfort Limit

-6°C/21°F

Extreme

-24°C/-11°F