Deuter Astro Pro 800 SL

The Deuter Astro Pro is an expedition-grade down sleeping bag for alpine adventures with a tent or for sleeping under the stars. The lining stretches up to 25% widthwise, hugging the shape of your body. It gives this bag a spacious feel while trapping warmth inside the bag. A three-dimensional, ergonomic footbox provides superior insulation in the sensitive area around the feet, with plenty of room to move around. All of the Astro Pro bags are bluesign® products and made using only RDS-certified down.

The SL models are shorter, and the shoulders and feet have a somewhat slimmer cut.
SL models have a higher down-to-volume ratio than the REG models.