Pajak Radical ULX Down Sleeping Bag

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Pajak’s Radical ULX provides focused lower-body insulation in an ultralight package. Weighing just 202 grams, it adds warmth where needed when sleeping. The key is 70 grams of premium 900-fill Polish white goose-down insulation.

Pajak says: 

Radical ULX is a lightweight and versatile lower body warmer that is designed for ultralight enthusiasts who are concerned about the weight of their gear. The integrated loops allow the shoulder suspenders to be attached, allowing the ULX to be worn in combination with a mid layer jacket.

Our Verdict

Pajak’s innovative Radical ULX provides focused lower-body insulation in an ultralight package for hard-core, gram-counting minimalists. Weighing just 202 grams (7.1 oz), this down-filled knee-length bottom layer adds warmth where you need it most when sleeping. This is one for trail runners and ultra enthusiasts. 

The key is 70 grams of premium 900-fill Polish white goose down insulation wrapped in a featherlight ripstop nylon shell. The simple pullover design with integrated suspenders lets you layer the Radical ULX over your base and mid-layers for a flexible sleep system.

While not a full sleeping bag, the Radical ULX hits the sweet spot for ultralight enthusiasts looking to lower their base weight. When paired with an insulated jacket, it provides cosy warmth around your lower core.

An attached stuff sack compresses the Radical ULX down small to integrate easily with your ultralight sleep system.

– Reviewed by Ultralight Outdoor Gear

Features

• Radical ULX is a lightweight and versatile lower body warmer that is designed for ultralight enthusiasts who are concerned about the weight of their gear.
• The integrated loops allow the shoulder suspenders to be attached, allowing the ULX to be worn in combination with a mid layer jacket
• An useful piece of equipment for outdoor enthusiasts who are looking to minimize the weight of their gear while still being prepared for a range of temperatures.
• External hang loops
• Single hand waist/hips regulation
• Compression/storage sack included

Specifications

Temperature Rating

• EN13537:2012 Comfort: 12°C
• EN13537:2012 Comfort Limit: 9°C

• Weight: 202g (including preattached stuff sack)
• Inner length: 125cm
• Outer length: 125cm
• Shoulder width: 78cm
• Foot width: 50cm

Material & Construction

• Fabric: GELANOTS® Ultra Light Rip Stop Shell
• FILL: 900 FP RDS Polish White Goose Down
• Fill Weight: 70g