Tailored for lightweight adventures, the Spark Women's sleeping bag stands out as the ideal choice. Specifically crafted to cater to women, this sleeping bag ensures added warmth and heat retention, providing a perfect blend of versatility and functionality. With an optimal warmth-to-weight ratio, the Spark Women's bag is not only compact but also delivers a high level of comfort for your outdoor pursuits. Goose Down with Ultra Dry Down treatment for improved water resistance in damp conditions. Featuring 10 Denier Nylon and 10D Nylon, these lightweight fabrics offer breathability, protection and effective temperature regulation for premium comfort. 10-Denier Nylon shell and lining. 10-Denier Nylon waterproof-breathable hood and footbox. Weighs: 411g (Regular) Comfort Limit: 8C 47F Lower Limit: 4C 39F Max User Height : 170cm Insulation Type: Down 850+ FILL Power, RDScertified, Goose Down with Ultra Dry Down treatment for improved water resistance in damp conditions. Fill Power: Ultra-Dry Down 850+ Baffle construction : Vertical chest baffles,horizontal baffles lower half and base, sewn through quiltedconstruction throughout. Fit : Women's Mummy Fit: Fitted cut with generous footbox and technical hood, to maximise thermal efficiency and minimise bulk and weight. Wider at the hips and narrower at the shoulders for a better fit and heat retention for women. Hood : Technical fitted hood with soft touch adjustment. Extra deep for a cosy like feel. Draft Tube : Single, down-filled, draft tube along the top of all zippers.