Mountain Equipment Core 400 Down Sleeping Bag

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The Pajak Core 400 is a high-end sleeping bag for cool-weather adventures, with an EN comfort limit rating of -6°C; the 700-fill power RDS-certified Polish white duck down offers an excellent warmth-to-weight ratio.

Pajak says: 

Core 400 sleeping bag is designed to be used in a variety of weather conditions, making it a versatile choice for campers and hikers. It features waterproof reinforcements at the hood and foot box, which helps to keep you dry in wet conditions. The sleeping bag is rated to be used in temperatures down to around -6 degrees Celcius, making it suitable for use in the spring, summer, and late autumn.

Our Verdict

The Pajak Core 400 is a premium down sleeping bag designed for cold-weather adventuring. With an impressive EN comfort limit of -6°C, it provides toasty warmth even when temperatures dip below freezing.

Utilising 700-fill power RDS-certified Polish white duck down, the Core 400 packs an excellent warmth-to-weight ratio. The down is lofty and efficient at trapping heat. Waterproof reinforcements at the hood and foot box help preserve insulation performance if moisture gets in.

Pajak paid close attention to details that maximise warmth, such as 3D zipper baffles, to prevent down migration and heat loss. The ergonomic hood cinches down to seal in precious heat.

The Core 400 is versatile for three-season camping. On warmer nights, unzip the full-length side zipper to vent excess heat.

With its -6°C EN comfort limit from premium down, the Pajak Core 400 is a warm and lofty cool-weather sleeping bag. Intelligent design features ensure every ounce of down provides maximum insulation. It’s an incredibly capable and packable sleeping solution for Spring to Autumn camping dipping into sub-freezing conditions.

– Reviewed by Ultralight Outdoor Gear

Features

• The sleeping bag is rated to be used in temperatures down to around -6 degrees Celcius, making it suitable for use in the spring, summer, and late autumn. However, experienced users may be able to use it in mild winter conditions as well.
• The sleeping bag is made with high-quality materials and features a durable construction, ensuring that it can withstand the rigors of outdoor use. Overall, the Pajak Core 400 is an excellent choice for campers and hikers looking for a versatile, all-season sleeping bag.
• Core 400 sleeping bag is designed to be used in a variety of weather conditions, making it a versatile choice for campers and hikers. It features waterproof reinforcements at the hood and foot box, which helps to keep you dry in wet conditions.
• Internal/external hang loops
• Inside pocket
• Non blocking zipper

Specifications

Temperature Rating

• EN13537:2012 Comfort: 0°C
• EN13537:2012 Comfort Limit: -6°C
• EN13537:2012 Comfort Extreme: -24°C

Short Specs

• Weight: 765g (excluding bag)
• Fits up to: 165cm
• Inner length: 172cm
• Outer length: 174cm
• Shoulder width: 82cm
• Foot width: 50cm
• Packing volume: 5 Litres

Regular Specs

• Weight: 796g (excluding bag)
• Fits up to: 180cm
• Inner length: 192cm
• Outer length: 200cm
• Shoulder width: 82cm
• Foot width: 50cm
• Packing volume: 5 Litres

Long Specs

• Weight: 874g (excluding bag)
• Fits up to: 205cm
• Inner length: 222cm
• Outer length: 230cm
• Shoulder width: 82cm
• Foot width: 50cm
• Packing volume: 5 Litres

Material & Construction

• Fabric: TORAY Airtastic SLF15 DWR
• FILL: 700 CUIN | 90/10 | Polish White Duck Down | RDS
• Fill Weight: 470g (Regular)