
Carinthia is a leading manufacturer of sleeping bags and outdoor clothing. The company has become known for its sleeping bags, which are used by defence forces, military organisations, and outdoor enthusiasts alike. The Defence series, for example, includes bags specifically optimised for military use, while also offering options for every season. The Defence 1 bag is suitable for warm summer nights, while the Defence 6 bag is ideal for freezing temperatures. For winter, the Survival One Sleeping Bag is designed for extremely low temperatures up to -18 °C and features a mummy shape for efficient heat retention. The Defence 4 bag is another winter option, known for its wind and water resistance, as well as its breathability.
| Characteristics | Values |
|---|---|
| Brand | Carinthia |
| Product Name | Survival One |
| Sleeping Bag Shape | Mummy |
| Cut | Special differential cut design |
| Number of Insulation Layers | 3 |
| Zipper | Quick-release, easy one-handed opening |
| Temperature Resistance | up to -18 °C |
| Material | Synthetic fiber known by the product name G-loft |
| Care | Wash only when necessary; dry at every opportunity |
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What You'll Learn
- Carinthia sleeping bags are designed for winter and freezing temperatures
- The Defence 4 bag is breathable and wind and water-resistant
- The G-LOFT synthetic fibre offers a great warmth-to-weight ratio
- The mummy shape design is efficient for heat retention
- The bag should be dried and aired out after each use

Carinthia sleeping bags are designed for winter and freezing temperatures
Carinthia's sleeping bags are known for their patented insulation material, G-Loft, a synthetic fibre with an excellent warmth-to-weight ratio. The G-Loft synthetic fibre is insensitive to moisture and has a higher thermal performance when wet compared to down. This makes it ideal for winter conditions where there may be rain, hail, or snow. The synthetic fibre is also perfect for those with allergies.
The Defence 4 bag, for instance, features a soft ripstop reinforced polyamide Shelltrans lining with excellent moisture-wicking properties, ensuring that moisture is transported to the outside of the bag. The bag is also wind and water-resistant, trapping air between the outer shell and quilted insulation. The G-Loft filling has a memory effect, quickly lofting once released from its stuff sack. Additionally, the G-Loft insulation contains Carinthia's Thermoflect, a thin and lightweight aluminium material that reflects body heat.
For winter conditions, Carinthia recommends the mummy-shaped sleeping bag, which has the best warmth-to-weight ratio. This shape ensures efficient heat retention, and the differential cut design provides maximum insulation in key areas. The rule of thumb is that the lower the temperature, the tighter the sleeping bag should be to retain body heat effectively. The hood is also crucial, as it helps retain heat lost through the head.
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The Defence 4 bag is breathable and wind and water-resistant
The Carinthia Defence 4 sleeping bag is a top-selling, three-season bag that is ideal for winter. It was originally developed for military use, so it is robust and suitable for cold-weather missions and outdoor adventures.
The trapezoidal cut of the Defence 4 bag provides the ultimate foot space, ensuring that the feet do not poke the insulation outward, avoiding cold spots. The tapered foot section also reduces weight and stuff size. The Defence 4 bag's double-layer sandwich construction with a loose shell means that there are two G-LOFT Plus insulation layers with offset quilting, creating an additional air pocket between the quilted insulation layer and the shell. This design means that no cold seams can occur.
The Defence 4 bag is a reliable choice for winter camping and outdoor adventures, providing warmth and comfort in cold environments.
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The G-LOFT synthetic fibre offers a great warmth-to-weight ratio
Carinthia sleeping bags are designed for a range of temperatures and conditions, from summer bags to high-performance winter bags for extremely low temperatures. The G-LOFT synthetic fibre used in Carinthia bags is an innovative high-tech material that offers a range of benefits for winter sleeping bags.
The G-LOFT fibre is designed to be warm, lightweight, and breathable, even in extremely cold and wet weather. This is due to its unique structure, which combines the advantages of natural down with the robustness of synthetic fibres. The fibre is hollow, which provides optimal heat retention, similar to the fur of a polar bear. The hollow structure also makes the fibre very light, as it is mostly air. This gives G-LOFT a great warmth-to-weight ratio, making it ideal for trekking tours where pack size and weight are important considerations.
The synthetic fibre also has the advantage of not absorbing moisture, unlike down. This means that G-LOFT can guarantee high thermal performance even in wet conditions, making it suitable for use in rainy and snowy winter weather. The fibre dries quickly after washing and always returns to its original airy shape, ensuring consistent performance.
G-LOFT is also easy to care for and is suitable for machine washing and drying, making it convenient for those who use it for outdoor activities such as trekking and camping. Overall, the G-LOFT synthetic fibre used in Carinthia sleeping bags offers a great warmth-to-weight ratio, high breathability, and excellent performance in wet and cold conditions.
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The mummy shape design is efficient for heat retention
Carinthia offers the Survival One Sleeping Bag, a high-performance winter sleeping bag designed for extremely low temperatures up to -18 °C. This sleeping bag features a mummy shape design, which is highly efficient for heat retention.
The mummy shape is a highly tapered, streamlined design that maximises heat retention, making it ideal for winter conditions. This shape ensures a snug fit around the feet, with slightly more width in the hip and shoulder areas. The integrated hood can be tightened to insulate the head and neck, further optimising heat retention. The tapered design of mummy-shaped bags also reduces the amount of fabric needed, making them more lightweight and packable than other types of sleeping bags.
The efficiency of the mummy shape design lies in its ability to minimise dead air, which is the unoccupied space within the bag that the body needs to heat up. With less internal air to warm, mummy-shaped bags excel at trapping warm air and preventing heat loss. This makes them a popular choice for backpacking and trekking tours, as they offer a superior warmth-to-weight ratio compared to other shapes.
While the mummy shape is highly effective for heat retention, it's important to consider its form-fitting nature. Some users may find the snug design restrictive, particularly those who tend to move around or sleep on their sides. For those who prioritise insulation and packability but prefer more wiggle room, a relaxed mummy shape or semi-rectangular design can be a good compromise. Ultimately, the choice between the mummy shape and other designs, such as rectangular or quilted bags, depends on individual preferences and specific requirements for warmth and comfort.
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The bag should be dried and aired out after each use
Carinthia sleeping bags are available with down or synthetic fillings. Both types of sleeping bags need to be dried and aired out after each use, but for different reasons.
Down sleeping bags are highly insulating and have a good weight-to-insulation performance and pack size. However, in damp or wet conditions, the down clumps together and loses its volume, which massively reduces its insulation performance. Therefore, it is important to dry and air out a down sleeping bag after each use to ensure that it retains its insulating properties.
Synthetic sleeping bags, on the other hand, are insensitive to moisture and have a higher thermal performance when wet. They are also easier to care for and dry much faster than down sleeping bags. Nevertheless, it is still important to dry and air out a synthetic sleeping bag after each use to prevent the growth of mould or bacteria, which could affect the bag's performance and cause unpleasant odours.
Regardless of the filling type, moisture released by the body overnight will reduce the insulating power of a sleeping bag and cause odours over time. Therefore, it is recommended to air out a sleeping bag daily, turning it inside out to dry out any moisture. When drying a sleeping bag, avoid direct sunlight as UV light can degrade the fabric over time. It is also important to avoid dry cleaning a sleeping bag, as the industrial solvents used can strip the natural oils from the down, reducing its loft.
To dry a sleeping bag, it is best to use a dryer on a low heat setting to avoid damaging the fabric. For down sleeping bags, adding two to three tennis balls can help restore the loft. Alternatively, a sleeping bag can be air-dried by laying it flat in an area with low humidity and no direct sunlight, or by hanging it up with care to distribute the weight evenly and avoid putting too much stress on the fabric.
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Frequently asked questions
Carinthia manufactures sleeping bags for both the military and civilian markets. Some of their popular winter sleeping bags include the Survival One, the Defence 4, and the Defence 6.
The Defence 4 is a highly breathable, wind and water-resistant sleeping bag. It features G-Loft insulation, which is a "hollowfiber" synthetic fill manufactured by Carinthia. This insulation has an excellent warmth-to-weight ratio, is moisture-resistant, and quickly lofts when released from its stuff sack.
Carinthia recommends their mummy-shaped sleeping bags for trekking tours due to their superior pack size and warmth-to-weight ratio. They also suggest paying particular attention to the fit of the hood, as it plays a crucial role in heat retention. For winter use, a snug-fitting sleeping bag is preferable to minimise the amount of empty space that requires body heat to warm up.











































