Astro and Astro Pro combine lightweight comfort, reliable warmth and responsibly sourced down for different mountain ambitions.
Whether on multi-day treks or demanding alpine expeditions, the Astro Series is built for restorative sleep in the mountains. Astro focuses on versatile lightweight comfort, while Astro Pro is engineered for colder temperatures and more demanding conditions.
Astro and Astro Pro are pioneers when it comes to sustainability: as bluesign® approved products, they meet strict standards for environmentally conscious and responsible production. The premium down used is fully certified according to the Responsible Down Standard (RDS) — for carefree sleep in every sense.
Astro Pro
For alpinists and backpacking adventurers looking for maximum insulation at minimal weight.
Our Pro Series impresses with maximum heat output
Thanks to elastic chamber seams, the inner shell fits perfectly around the sleeper and thus effectively prevents cold air spaces. Inside the spacious outer shell, the inner shell, which can be stretched by 25% in width, also provides a comfortable amount of space in the sleeping bag. The distinctive differential cut also allows the down to develop its bulking power unhindered. Below the knee, longitudinal chambers are placed to prevent the down from slipping sideways and guarantee extremely good thermal insulation. The sensitive area of the feet is warmed by the three-dimensional foot box with particularly comfortable filling. Lots of clever features make the Astro Pro a warming companion on any demanding tour!
Optimal fit for regenerative sleep
A good night’s sleep is essential for restoring energy levels. The mummy fit with stretchy ThermoStretch seams inside not only helps retain warmth but also gives the fill stability and a cozy feel. The ThermoHood wraps around the head, while the Ergofoot Pro 3D footbox allows for plenty of wiggle room. And the 360° insulation system results in evenly distributed warmth no matter how much you move in your sleep.
Extra small and compact
Packed in a lightweight compression stuff sack with new side compression, the sleeping bag can be compressed to a minimum pack size for easy storage in your backpack.
Tested. Certified. Committed.
Astro
For athletes and travellers where space is at a premium, looking for a warm, lightweight and compact sleeping bag.
Packability & Lightweight Performance
The Astro combines excellent warmth-to-weight performance with a compact pack size. Filled with premium 650+ cuin down, it delivers reliable insulation while packing down small in its lightweight compression stuff sack. H-chamber construction keeps the down evenly distributed to prevent cold spots, while the ergonomic mummy shape and contoured hood help retain body heat for lasting comfort on multi-day adventures.
Astro Highlights
Mummy comfort shape
Ergonomic contoured hood
360° insulation & H-chamber-construction
2-stage compression stuff & storage sack
Smart storage solutions for every stage of your adventure
A lightweight compression stuff sack keeps the Astro compact while travelling, making efficient packing easy. Back at home, the included storage sack provides the space the down needs to recover and retain its loft, ensuring lasting warmth and comfort for years to come.
Tested. Certified. Committed.
Care tips, storage and more
Want to learn more about sleeping bags, the materials used, or how to properly care for and store them?
Our comprehensive guide helps you choose the right model based on temperature range, insulation, materials and your outdoor adventure needs. From down vs. synthetic insulation to fit, pack size and climate conditions — discover everything you need to know before your next night under the stars.
All sleeping bags at a glance