Mountain Equipment Fireflash Sleeping Bag (-16°C/3°F)

The Fireflash sleeping bag is a top choice for any climbing team, having been tested on some of the toughest alpine routes from Alaska to the Karakoram. It’s exceptionally warm, protective, and super lightweight, making it one of the best ultralight sleeping bags out there.

Filled with 610g of 900 fill power, DOWN CODEX® approved European goose down, and wrapped in ultra-light PLASMA 10-denier fabric, the Fireflash delivers amazing warmth without the weight. Plus, its eco-friendly, fluorocarbon-free DWR treatment adds extra protection against snow and condensation.

The bag’s slanted baffles are designed to keep the warmth in while staying light and packable. Inside, the EXL® elastic stitching system helps reduce drafts and dead air pockets, keeping the down lofted and warm. The seven-baffle hood and collar focus extra warmth around the head, while the anatomically shaped footbox, with its four-baffle system, wraps the feet in cozy insulation.

Unlike other ultralight bags, the Fireflash uses a full-spec zip for durability, paired with the Gemini™ zip baffle to cut down on heat loss. The magnetic Lode Lock™ closure and collar drawcords are easy to use even in tough conditions.

The tapered Alpine fit strikes a great balance between warmth and weight while still giving room for extra layers or boots when needed.

With a Good Night’s Sleep Temperature of -16°C (3°F), the Fireflash is perfect for fast, lightweight alpine adventures at high altitudes.

Features

• Ultra-light and breathable PLASMA 10D fabric with FC-free DWR coating
• 610g of 90-10 European Goose Down with 900 fill power
• Alpine Fit 2.0 and EXL® system enhance comfort and thermal efficiency
• Slanted box-wall baffles for improved insulation
• Ground-level side seams for better fit and warmth
• 7-baffle, anatomically shaped hood with low-volume
• 4-baffle, anatomically designed offset foot-box for extra warmth
• Full-length Gemini zip baffle with 140cm zip and neck collar
• Plasma 10D inner fabric with FC-free DWR coating
• Comes with a waterproof roll-top stuff sack and storage cube

Specifications

Video

Technology

	Down Cycle The recycled down Mountain Equipment use comes entirely from post-consumer goods - unwanted clothing and bedding collected by waste recycling companies.
	Fair Wear As a member of Fair Wear, Mountain Equipment is committed to implementing the highest standards of working conditions.
	Plasma One of the lightest down-proof fabrics on the planet. Perfect for alpinists and backpackers for whom weight is absolutely critical.
	Down 700 Down is the finest insulator that Mountain Equipment have. Its warmth-to-weight ratio, compressibility, long lifespan, and softness are yet to be matched by manmade insulations. For all but the most serious expeditions, Duck Down is a great choice for both insulated clothing and equipment.