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Ascent -12C / 10F Tempest Blue/Maya Blue
-20% | TREK20
Ascent -12C / 10F Tempest Blue/Maya Blue + Rab

Ascent -12C / 10F Tempest Blue/Maya Blue

Bivouac/Hiking sleeping bag - Ascent -12C / 10F Tempest Blue/Maya Blue - Rab - 2026

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Ascent -12C / 10F Tempest Blue/Maya Blue
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Description

TheAscent -12C / 10F Tempest Blue/Maya Blue brand's Rab is a 3-season mummy-style sleeping bag, ideal for Bivouac and Hiking.

Designed to provide excellent comfort down to -5 °C, this sleeping bag features high-performance natural down filling that offers excellent protection against the cold. Its sarcophagus shape is optimized for heat retention, while minimising bulk and weight, making it perfect for adventurers looking for lightness. The bag has zips on both sides, making it very versatile for various uses.

Thanks to its compact size, it slips easily into your backpack. Although it is not waterproof, its technical design ensures good durability against ambient moisture. This sleeping bag is a reliable choice for outdoor adventures where thermal comfort and compactness are essential.

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L'Ascent -12C / 10F Tempest Blue/Maya Blue sleeping bag Rab is a 3-season sleeping bag in a Sarcophagus design, ideal for Bivouacs and Hiking.

Designed to offer excellent comfort down to -5°C, this sleeping bag uses a high-performance synthetic filling to ensure good insulation even in wet conditions. Its sarcophagus shape optimises Warmth retention while limiting volume and weight, perfect for adventurers looking for lightness. The bag has zips on both sides, offering great flexibility of use.

With its compact size, it fits easily into your backpack. Although not waterproof, its technical design guarantees good durability against ambient humidity. This sleeping bag is a reliable choice for outings in the great outdoors, where thermal comfort and compactness are essential.

Ascent -12C / 10F Tempest Blue/Maya Blue
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Technical details
Comfort temperature
-5
Sleeping bag shape
Mummy
Insulation type
Down
Use - sleeping bag
Trekking
Overview
Brand
RabRab-logo
Warranty
2
Year
2026
Season
Spring
Gender
Unisex
Product details
Weight (g)
1629
Shoulders (cm)
80
Feet (cm)
54
Length (cm)
215
Technical details
Zip side
Droit Gauche
Seasons
3
Combinable
No
Performance
Extreme temperature
-32
Comfort temperature limit
-12
Use type
14613 14605
Filling
Synthetic
Other features

- Adjustable hood
- Two-way YKK® zip running three-quarters of the length
- Interior zipped pocket
- Optimized filling design to minimise heat loss
- Padded 3D collar to retain warmth
- Padded flap along the zip
- Ergonomic footbox
- Storage bags included
- Compression sacks included
- PFC-free DWR water-repellent treatment

Composition :
- Outer material: Pertex® Quantum 30D – 50 g/m²
- Lining : 20D recycled Nylon – 38 g/m²
- Filling : European duck down, 650 fill power, with a finish Nikwax

Sizes:


regular Long Wide
Length 215 cm 230 cm 215 cm
Maximum number of users 1.85 m 2 m 1.85 m
Shoulder width 80 cm 81 cm 90 cm
Pool width 67 cm 68 cm 73 cm
Width of feet 51 cm 52 cm 58 cm




Pertex® Quantum Precision manufacturing using incredibly fine threads results in fabrics Pertex® Quantum designed to trap still air and enhance the insulation’s effectiveness. This fabric is lightweight, soft and extremely compressible. A durable water-repellent (DWR) finish repels light rain and snow to provide extra protection against the elements.
,

- Adjustable hood
- Bi-directional zip YKK® 3/4 length
- Internal zipped pocket
- Filling construction optimized to reduce Warmth loss
- 3D Collar padded to retain Warmth
- Trimmed flap along the zip
- Ergonomic footbox
- Storage bag included
- Compression bag included
- PFC-free DWR water-repellent treatment

Materials:
- Outer fabric: Pertex® Quantum 30D - 50 g/m² - 50 g/m² - 30D
- Lining: 20D recycled Nylon - 38 g/m² (8.5 lbs)
- Filling: European duck down 650 CUIN with finish Nikwax

Sizes:


Standard Long Wide
Length 215cm 230cm 215cm
Maximum user size 1.85m 2m 1.85cm
Shoulder Width 80cm 81cm 90cm
Pool Width 67cm 68cm 73cm
Foot width 51cm 52cm 58cm




Pertex® Quantum Made with precision from incredibly fine yarns Pertex® Quantum fabrics are designed to trap still air and improve insulation efficiency. This fabric is light, soft and extremely compressible. This fabric has a durable water-repellent (DWR) finish that protects against light rain and snow to provide extra protection against the elements.
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