Mountain Equipment Helium GT 400

The Mountain Equipment Helium GT 400 Sleeping Bag is designed for adventurers who demand both comfort and performance on long-haul trips. Perfect for side sleepers and those who appreciate a little extra room to move, the Helium GT series features a significantly more generous yet tapered fit, ensuring superior comfort without compromising on warmth or compressibility. Crafted with sustainability in mind, this sleeping bag is made from 100% recycled, fluorocarbon-free fabrics, offering an eco-conscious choice for extended road trips, backpacking, and multi-season travel. Whether you're navigating cooler spring nights or summer adventures, the Helium GT 400 delivers reliable warmth and exceptional packability, making it a versatile companion for any journey.

Lightweight yet durable, the Helium GT 400 combines practicality with premium features. Its 90-10 Pure Duck Down insulation (449g, 700 fill power) ensures excellent warmth-to-weight ratio, while the slanted box-wall baffles and anatomically shaped hood and foot-box enhance thermal efficiency. The full-length Gemini zip baffle with Lode Lock closure and integrated neck collar provides added protection against drafts, ensuring a snug and comfortable sleep. Supplied with a waterproof roll-top stuff sack and storage cube, this bag is as convenient as it is high-performing.

Mountain Equipment Helium GT 400 Features

• 100% recycled HELIUM 20D outer shell is very light and highly breathable with fluorocarbon-free DWR
• 100% recycled Supersoft 20D lining fabric with fluorocarbon-free DWR
• 449g of 90-10 Pure Duck Down with a minimum fill power of 700
• GT fit
• Slanted box-wall baffles and stitch-through baffles
• 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
• Waterproof roll-top stuff-sack and storage cube
• Good Nights Sleep Guaranteed -5°C