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The Polar Ranger -20F/-30C Flame/Orange from the brand Thermarest is a mummy-style sleeping bag designed for mountaineering and extreme conditions throughout the four seasons.
This model guarantees a comfortable temperature of -20 °C, ideal for coping with the bitter cold in the mountains. Its natural feather filling provides excellent thermal insulation whilst remaining lightweight. Its outer material has a water-repellent finish that protects against moisture whilst ensuring good breathability. The bag has a central Zip, making it easy to access the contents and perform adjustments to the ventilation to suit your needs.
With its ergonomic sarcophagusshape, it optimizes heat retention around the body. It is fitted with arm loops so you can keep it on whilst eating. Its straps for securing it to the mattress will ensure you sleep soundly, without the risk of it slipping. Its robust design and technical materials make it Polar Ranger a reliable companion for your high-altitude expeditions, combining comfort, protection and performance in a compact, well-organised pack.



- Sarcophagus-style shape with zips for the arms
- Central zip
- Minimum head opening, resealable with magnets
- Straps for attachment of the mattress
- Excellent durability against moisture
- Wicking away of sweat
- Inside pocket for a mobile phone and Accessories
- RDS- and GRS-certified materials
- PFAS-free DWR water-repellent treatment
Composition :
- Outer: 100% recycled Nylon
- Filling : Hydrophobic Nikwax Hydrophobic Down goose down – 800 CUIN
Sizes:
| Size | Regular | Long |
| Weight (g) | 1480 | 1560 |
| Filling weight (g) | 965 | 1070 |
| Shoulder width (cm) | 163 | 168 |
| Hips (cm) | 150 | 173 |
| Foot (cm) | 117 | 130 |
| Overall length (cm) | 206 | 218 |
| Max. user size | 183 cm | 198 cm |
| SynergyLink™ | These removable straps allow you to attach the mattress to your sleeping bag to minimise heat loss: you’ll stay snug all night long. |
| Responsible Down Standard - RDS | The RDS standard guarantees that down and feathers come from ducks and geese that are treated well, live healthy lives and are able to express their natural behaviours, without experiencing pain, fear or distress. The scope of this standard covers the entire supply chain, from livestock rearing to the final product. |
| Nikwax Hydrophobic Down™ | Offering excellent temperature regulation, it dries three times faster, absorbs 90 per cent less moisture and retains its loft 60 times longer than untreated down. |
| Global Recycled Standard (GRS) | The standard Global Recycled Standard (GRS) was created to meet the needs of companies wishing to verify the recycled content of their products (both finished and intermediate) and to monitor responsible social, environmental and chemical practices in their production processes. The standard GRS aims, on the one hand, to set out the requirements that ensure the accuracy of ingredient declarations and the quality of working conditions and, on the other hand, to minimise environmental and chemical impacts. |
