Sleep Warm When the Temperature Drops – Down to -20°CWhen the mercury plunges and the wind picks up outside your tent, the quality of your sleeping bag is the difference between a great night's sleep and a miserable one. The Winter Goose Down Sleeping Bag is filled with 95% white duck down — one of nature's most efficient insulators — and rated to handle temperatures as low as -20°C. It's the sleeping bag you reach for when conditions get serious.Key Features 95% White Duck Down Fill: Premium down insulation traps body heat efficiently while remaining lightweight and compressible -10°C to -20°C Temperature Rating: Designed for cold-weather camping, winter trekking, and high-altitude use Mummy Design: Contoured shape minimises dead air space for maximum thermal efficiency Spliceable / Double Design: Two bags can be zipped together to create a double sleeping bag for couples 400T 20D Nylon Shell: Ultra-thin, lightweight outer shell that's durable and wind-resistant Lightweight & Compressible: Packs down small into the included storage sack for easy transport Multi-Season Versatility: Suitable for autumn, winter, and cold spring conditions Specifications Specification Details Fill Material 95% White Duck Down Shell Material 400T 20D Nylon Temperature Rating -10°C to -20°C Design Mummy / spliceable double Dimensions 210 × 80 × 80 cm Seasons Autumn / Winter / Cold Spring Why Choose This Sleeping Bag?Down insulation outperforms synthetic fill at cold temperatures because it provides more warmth per gram — meaning this bag stays light and packable while delivering serious cold-weather protection. The 95% duck down fill is a high-quality rating that ensures consistent loft and warmth retention even after repeated compression. The spliceable design is a practical bonus for couples or anyone who wants the option of a double bag.I For Winter camping and cold-weather expeditions High-altitude trekking and mountaineering Backpacking in autumn and early spring Emergency preparedness and survival kits Couples camping (spliceable to double) In the Box 1× Winter Goose Down Sleeping Bag 1× Compression storage sack