Had this made by Nunatak before it was available to the public as an official offering.  Has only been used on two bikepacking trips in the past 4 years.  7D black robic outer 10D inner, large drawstring shroud for the top half and cinch cord at waist where insulation begins.  Paired with parka makes one of the ultimate minimalist bivy setups.  I have slept in light snow 30 degrees with Skaha Apex parka and this and been comfortable but this is more about fast and light than comfort.  Rare item and not made anymore.  insulation is in great condition stored in loose sack always.

https://nunatakusa.com/content/30-akula-bivy-system

Please ask any questions so you understand what you are getting if not familiar with this.  it is insulated bivy but insulation is only in the bottom half from waist to footbox.  Love the concept but more suited to climbing or FKT hikes where you would carry a parka.  I am training for bikepack racing where I never need insulation on top so am selling most of my backpacking gear that doesn’t cross over.

 

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