Sea to Summit Flame FmIV Ultralight Down Sleeping Bag (-10°C) Womens

The Sea to Summit Flame™ Series spans everything from an ultralight liner 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, #5 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.

• Vertical chest baffles, horizontal baffles lower half and base, box wall baffle construction throughout
• Full side zip with two sliders provides easy access and extra ventilation options
• Updated sizing provides extra room for both shoulders and hips while still maintaining insulation efficiency
• Draft tube prevents heat loss through the zipper
• Includes hood draft collar
• Note: This bag is not designed to pair with another