The Vango Cobra 400 sleeping bag is designed for trekking and fast-paced adventures where lightweight packing is essential. It features a Welded Box Wall construction for optimal down loft and even distribution, ensuring maximum warmth and comfort. The 20D 380T Nylon Outer Shell is durable and water-resistant, while Thermal Reverb technology radiates body heat for enhanced warmth. Insulated with lightweight and warm 'Insulite Helix' synthetic filling, it is compressible for easy packing. A 'Reflective Interlining' further boosts insulation by reflecting heat back to the user. The mummy shape provides a snug, thermally efficient fit with a close-fitting hood. It includes a soft-touch brushed polyester lining for comfort against the skin and a breathable design for temperature regulation. A handy internal pocket is included for small items. The sleeping bag has a temperature rating of -1°C, making it suitable for cooler climates. It is recommended to pair with a sleeping pad for optimal comfort and insulation from the ground. The ethically sourced 90/10 700 Fill Power Goose Down with Hydro Barrier Down stays drier for longer. This sleeping bag is a great choice for outdoor enthusiasts prioritizing warmth, comfort, and sustainability.