Pajak Core 950 Duck Down Sleeping Bag - Blue, Left Zip, 165 cm

When the temperature drops well below freezing and you're bivouacking in the mountains, the Pajak Core 950 sleeping bag keeps you warm through the night. Filled with 950 grams of high-loft 700 CUIN Polish duck down, it delivers reliable insulation for alpine expeditions, winter trekking, and cold-weather camping. The left-side YKK zipper with anti-snag guard makes entry and exit easy, while the H-chamber construction prevents cold spots and keeps the down evenly distributed. The TORAY Airtastic SLF15 DWR shell and lining are lightweight, breathable, and water-resistant, protecting the down from moisture and condensation. An internal stash pocket keeps small essentials close at hand, and the included stuff sack compresses the bag to just 7.8 liters for easy packing. With a comfort rating of -10°C and a limit rating of -18°C, this bag is built for serious cold.

Key specifications

• Fill: 950 g of 90/10 Polish duck down, 700 CUIN fill power
• Temperature ratings: Comfort -10°C, Limit -18°C, Extreme -40°C (EN 13537)
• Shell and lining: TORAY Airtastic SLF15 DWR (nylon)
• Zipper: YKK full-length, left side, anti-snag guard
• Maximum user height: 165 cm
• Packed volume: approx. 7.8 L
• Includes stuff sack and storage sack

Why choose it

The Pajak Core 950 offers an exceptional warmth-to-weight ratio, thanks to its high-quality down and efficient H-chamber design. The DWR-treated fabrics add moisture resistance without compromising breathability, ensuring the down stays dry and lofty in humid or snowy conditions. The left-side zipper is ideal for right-handed users who prefer easy access, and the included storage sack helps maintain loft during off-season storage.

Ideal use cases

• Winter mountaineering and alpine climbing
• Cold-weather backpacking and trekking
• Snow camping and expedition base camps
• Shoulder-season trips where temperatures may drop below freezing

Good to know

The bag is designed for users up to 165 cm tall, ensuring an efficient fit that maximizes thermal efficiency. The down is responsibly sourced and complies with ethical standards. To extend the life of the bag, store it uncompressed in the provided storage sack when not in use, and wash only with down-specific detergent.