Sea To Summit Flame FmI Women's Sleeping Bag (Regular-Right Zip) Ultra-light and technical, the Flame FmI is part of the Flame Series which have been designed to keep you as warm as possible whilst also minimising the weight and pack size. Utilising a range of impressive technologies, the Flame FmI sleeping bag has premium materials and a carefully designed construction. Sea To Summit's Flame FmI Sleeping bag is designed from a combination of 7D and 10D fabrics ensuring the bag is lightweight and can be packed away easily. The bag has impressive RDS 850+ Loft Premium Goose Down, which is the very best quality down available for sleeping bags. This down provides the highest insulation for its weight and will last the longest. Further ensuring you remain warm, the bag has a vertical baffle on the chest which optimises positions of down, to prevent it from moving during use, whilst also reducing cold spots. A contoured women's specific mummy design also provides efficien