A lightweight and high-performance Mountain Equipment Helium 400 down sleeping bag, designed for serious backpacking and wild camping where warmth, weight, and packability matter. Part of Mountain Equipment’s renowned Helium range, this sleeping bag offers excellent insulation while packing down small, making it ideal for trekking, multi-day hikes, and lightweight camping setups.

With premium down fill and an ergonomic mummy shape, the Helium 400 provides efficient warmth and comfort for 3-season use.

As with all ReTrail items, this sleeping bag has been fully checked and condition graded before listing.

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Details

Brand: Mountain Equipment

Model: Helium 400

Type: Down Sleeping Bag

Season Rating: 3 Season

Colour: Dark blue with orange lining

Weight: 840g 

Comfort: 0c

Features:

• High-quality down insulation

• Lightweight and highly compressible design

• Ergonomic mummy shape for efficient warmth

• Adjustable insulated hood

• Full-length zip with draft baffle

• Ideal for backpacking, trekking, and wild camping

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Condition

Grade A – very good condition

• Light signs of previous use

• No damage or faults

• Down loft remains strong and fully functional

• Clean and ready for use

A premium lightweight sleeping bag from Mountain Equipment, built for dependable warmth and many more nights in the outdoors ♻️