Deuter Astro Pro 400 SL  is a professional cocoon down sleeping bag for trekking in very cold weather, ideal for climbers who sleep in a tent or under the stars.
The inner shell can stretch up to 25% in width and conforms perfectly to the body, allowing for plenty of space while keeping the sleeping bag warm.
It has an ergonomically designed, optimally insulated bottom with extra space for your feet to rest in a natural position.
The Deuter Astro Pro 400 SL sleeping bag is a more female-friendly version of the Deuter Astro Pro 400 sleeping bag, designed for people up to 175 cm tall.
The filling is Grey Duck Down, a natural duck down that meets the RDS (Responsible and Humane Treatment of Animals) standard.
The 360° filling system (360° Fill) with the same amount of filling and the same top and bottom design ensures the same temperature in all sleeping positions
The material is an elastic thin nylon that is resistant to fluff, fibres and wind, its stability and abrasion resistance are achieved thanks to a thin ripstop structure.
The fabric is durable and wear-resistant, pleasant to the touch, breathable and quick-drying, moisture resistant, and not treated with any perfluorinated or polyfluorinated chemicals (PFAS free).
Dryzone - water-repellent material on the head and feet
Deuter Astro sleeping bags are a bluesign® product, manufactured in accordance with strict environmental and social standards, with minimal impact on people and the planet.
The lightweight compression sack with new side compression helps to pack the sleeping bag compactly to fit into a backpack.
WARNING. We recommend storing the sleeping bag in the included mesh bag.
Purpose of the Deuter Astro Pro 400 SL: for winter hiking and mountain climbing, mountaineering.
Season:   cold winter.

Features of the Deuter Astro Pro 400 SL:
- Maximum weight (+ bag weight), kg:   0.8 + 0.03 (28.22 + 1.1 oz)
- Comfort temperature, °C:   + 2 - 4 (+ 36 + 25 °F)
- Extreme temperature, °C:   - 21 (- 6 °F)
- Length, cm:   194.0 (76.4 in)
- Width (shoulders/foot), cm:  63.0 / 43.0 (24.8 / 16.9 in)
- Package size, cm:   ∅ 14.0 x 30.0 (5.5 x 11.8 in)
- Outer Material:   Nylon 20D Ripstop + DWR, PFC free
- Filling:   Grey Duck Down FP 650+ cuin 90/10 Down RDS, 400 g (14.1 oz)
- Inner material:   Nylon 20D Ripstop, PFC free
- Internal insulating collar
- Internal pocket for small items
- Ergonomic hood with drawstring
- Extra space for the Ergo foot
- Two-way zip on the left side
- Contrasting drawstrings to adjust the hood in the dark
- Dryzone - water-repellent material in the head and foot area
- Compression bag for transport and mesh bag for storage

Recommendations for use
- The sleeping bag is designed to be used with a sleeping pad - a camping mat that insulates the body from the cold ground.
- Fold the sleeping bag into the transport bag randomly each time - this will prevent the insulation from falling off and extend its service life.
- It is recommended that you wash your sleeping bag as little as possible, following the manufacturer's recommendations and using appropriate detergents, and using a liner will help you wash your sleeping bag less often.
- It is recommended to dry the sleeping bag whenever possible in the field, and be sure to dry and ventilate it well before storing it for a long time.
- Store the sleeping bag in the most fluffy, non-compressed state - this will extend the service life of the insulation, and it is even better to store the sleeping bag in a special mesh bag.

Warranty
The warranty period is 1 year.
If a branded product fails due to a manufacturing defect, we will repair or replace it free of charge at our discretion.
This warranty applies only to original, unaltered and unmodified products and workmanship.
This warranty does not cover damage caused by accident, improper care, negligence, normal wear and tear, weather conditions (wind, rain, fire, animals, etc.) or natural fading of colours and materials.
This warranty does not cover consequential damages or any other damages resulting from any defect in the product.
Damage not covered by the warranty may be repaired at a reasonable charge.

MANUFACTURER
Deuter
The world-famous German company Deuter was founded in 1898 by Hans Deuter in Bavaria, and has been manufacturing a variety of equipment for over 115 years.
The brand has long been synonymous with quality innovation and reliability, and is trusted by professional climbers, skiers and hikers, as well as the military.
Hundreds of specialists work on the design of new models, using all the achievements of modern science, each Deuter backpack is a masterpiece of engineering.
Deuter has several of its own factories in Vietnam, where all products undergo rigorous quality control at every stage of production, so when you buy a Deuter backpack or accessories, you can be sure of their reliability and durability.
The product line of the German brand Deuter includes backpacks for active sports and mountaineering, deuter hiking backpacks, sports and city backpacks, cycling backpacks, deuter school backpacks and even backpacks for the little ones, deuter baby carriers, accessories for mountaineering and climbing, cycling, running and fitness, modern high-tech sleeping bags, necessary small things for adventures - first aid kits, backpackers, raincoats, shoe covers, drinking systems.
Year after year, Deuter never ceases to delight with innovative technologies, new colours and practicality of each product.