Sea to Summit Flame FmIII - Women's

Availabilty: In stock
Only %1 left
As low as €431.10 Regular Price €479.00
Including 21% V.A.T.
More Information
Insulation Down
Comfort temperature -10° / 0°
Weight 500 - 750g

Quick overview

The Flame™ Series spans everything from an ultralight sleeping bag for summer to an expedition weight mid-winter bag. While the end usage is very different, they reflect a design ethos of matching weather conditions to the lightest bag possible. The secret to the impressive performance is a combination of premium materials and careful design. The RDS 850+ Loft premium goose down, light-gauge #3 YKK zip and high performance 10D Nylon shell and 7D lining fabrics set the stage for superior performance. These materials are combined with a contoured mummy design for efficient insulation, and that mummy design is then tweaked for each model to best fit the use scenario.

The women’s specific fit is wider at the hip and narrower at the shoulder and we’ve added extra down overall for increased warmth.

ULTRA-DRY Down™ water-repellent treatment protects the down from external moisture and condensation from the inside of the bag, virtually eliminating the negative effects moisture has on down. All Sea to Summit Down Sleeping Bags use Responsible Down Standard (RDS) certified down. The ULTRA-DRY Down™ protection also makes the Flame™ an impressive hard-alpine or adventure racing bag, where every gram is counted and down has never been a viable option.

Ultra-light and technical, the Flame™ Series bags are designed to keep you as warm as possible while minimising packed weight and size.


Sea to Summit Flame Fm3 R L
Comfort °C -4 °C -4 °C
Limit °C -10 °C -10 °C
Extreme °C -29 °C -29 °C
Fill weight 440 495
Weight (grams) 665 745
Insulation material ULTRA-DRY Down® 850+ Loft ULTRA-DRY Down® 850+ Loft
Up to bodysize <170 cm <183 cm
Shoulder- / Hip- / Footwidth (cm) 150 - 142 - 90 cm 155 - 148 - 96 cm
Compressed Volume 5 L  
Shape Mummy Mummy
Intended use Globe-trotting adventures Globe-trotting adventures


  • Women's specific expedition mummy bag sizing provides extra space for layered clothing or extra wriggle room
  • Vertical box baffles in the torso area accommodates extra down and boosts warmth around the core, vertical baffles on chest optimises position of down to prevent it moving during use
  • Lower part of the bag uses a horizontal full box baffle construction to accommodate extra down and reduce cold spots
  • Full zip with two sliders provides easy access and allows extra ventilation options
  • Updated sizing provides extra room for both shoulders and hips while still maintaining insulation efficiency
  • Zipper draft tube, hood and front neck draft collar to prevent warmth being lost when it’s needed
  • NOTE: This bag is not designed to pair with another


  • Shell: 100% Nylon
  • Lining: 100% Nylon
  • Primary Filling Material: GOOSE DOWN (Min. 90% Down)
  • Stuffsack: 100% Nylon excluding Trims
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