Sea To Summit

Sea To Summit Flame 3 FMIII Women's -4c

$349 $481

Sea To Summit Flame 3 FMIII Women's -4c

The versatility of the Flame Ultralight Women's Sleeping Bag Series spans from an ultralight down-filled liner to a mid-winter fast-and-light sleeping bag. Each model uses premium materials and design to provide cutting-edge performance.

The women's specific mummy fit is narrower at the shoulder and wider at the hip, and features extra down compared to the unisex Spark models.

Shaped for comfort

Narrower at the shoulders, wider between the hips and knees. Regardless of the position you sleep in (figure-four, on your side or on your stomach), this shape provides a significantly higher level of comfort by giving you the room to move without compressing the insulation.

Warmth from additional insulation

Additional insulation compared to unisex bags, positioned using different body mapping for thermal performance exactly where it is needed. Temperatures for Women’s sleeping bags are shown using the gender appropriate Comfort rating.

Maximum comfort for a good night's rest

Construction details like snug-fitting hoods and oversized draft tubes keep you warm in cooler weather. Super-soft fabrics are comfortable in any season.

You don’t have to narrow your options with a constrictive mummy bag – expand your horizons with a sleeping bag which fits the way you sleep.

Sea To Summit Flame 3 FMIII Women's -4c Features

  • Super-compressible ULTRA-DRY Down 850+ Loft 90% Down Cluster Premium Goose Down certified Responsible Down Standard (RDS)
    provides maximum warmth-to-weight ratio
  • Perfect for side sleeping: Women’s-specific hooded contoured mummy shape for comfort and efficient insulation, with extra space for layered clothing or extra wriggle room
  • Warmth where it’s needed: Extra insulation to accommodate for lower sleeping temperatures; hood, zipper draft tube and draft collar for extra warmth
  • Box-baffle construction throughout maximises warmth
  • Vertical torso box baffles prevent down shift when you move in your sleep, eliminating cold spots
  • Drawcorded hood and front draft collars help trap warmth
  • Draft tube prevents heat loss through the zipper
  • The full-length #5 YKK zipper with two sliders provides easy access and warm-weather ventilation
  • Field repairable: The open-end zip allows slider to be easily re-threaded for on-the-go repairs
  • non-PFC fabrics: 10D Nylon shell and 7D Nylon liner fabrics are DWR treated and non-PFC
  • Ethically sourced down: Responsible Down Standard (RDS) Certified
  • Flame and Spark sleeping bags with like sized zips pair together
  • QuiltLock System compatible—securely connect any Sea to Summit quilt to your sleeping bag to boost your sleep system’s performance for colder conditions
  • Includes a Sea to Summit Ultra-Sil Nano Compression Sack and larger storage cell

 Sea To Summit Flame 3 FMIII Women's -4c Specifications 


FLAME III (-4°C) REGULAR FLAME III (-4°C) LONG
BAG WEIGHT 665g 745g
COMPRESSED VOL (ASTM STANDARD) 5.3 L 6.3 L
COMPRESSION SACK XS - 6L to 2L XS - 6L to 2L
FILL WEIGHT 440g 495g
FITS UP TO HEIGHT 170 cm 179 cm
SEASON RATING 2.5 Season 2.5 Season
WOMEN'S TEMP RATING (EN  13537  COMFORT) -4°C -4°C