Grüezi Bag DownWool Ice 2.0 – warm sleeping bag for winter and cold conditions

Description

Warm sleeping comfort for cold nights

Grüezi Bag DownWool Ice 2.0 is designed for trips where temperatures fall well below freezing and you need significantly more warmth than a conventional three-season sleeping bag can provide. With a comfort temperature of −6 °C, it is designed for cold nights from autumn through spring, while DownWool® insulation helps maintain a comfortable sleeping climate as temperature and humidity change.

Ice 2.0 is an excellent choice for winter hiking, trekking, camping and other cold-weather adventures when you need high insulation performance without moving up to the weight and bulk of an expedition sleeping bag.

Down + wool – why DownWool®?

DownWool® 2.0 combines 70% down with 30% wool. The down provides excellent insulation with relatively little weight and pack volume, while the wool helps regulate both temperature and moisture inside the sleeping bag.

This becomes particularly valuable in cold conditions. Your body releases moisture throughout the night, and increasing humidity can reduce the insulating performance of conventional down. The wool in DownWool® helps create a more balanced microclimate and makes the insulation less sensitive to humid conditions.

In practical terms, this means a more stable and comfortable sleeping climate throughout the night – even as temperature and humidity change.

For winter and cold conditions

DownWool Ice 2.0 is tested according to EN ISO 23537-1 with a comfort temperature of −6 °C, a limit temperature of −12 °C and an extreme temperature of −33 °C. Grüezi Bag recommends an operating range of −6 to +15 °C.

The comfort temperature is the most useful reference point when choosing a sleeping bag for normal use. The limit temperature represents a lower temperature at which a standard adult male can still be expected to remain warm in a curled sleeping position. The extreme temperature is a survival-related safety rating and should not be used as a target temperature for normal sleeping conditions.

Individual sensitivity to cold varies considerably. If you tend to feel the cold, or are travelling in conditions where temperatures can fall rapidly, always allow an additional temperature margin. Your sleeping mat, clothing, wind, humidity, food intake and fatigue can also affect how warm you feel during the night.

Designed to reduce heat loss

Ice 2.0 features a 3D thermal collar that helps retain warm air inside the sleeping bag and reduce heat loss around the neck and zip area. The collar also closes around the zip area to help minimise cold spots.

The adjustable hood with Face Baffle can be drawn closely around the head as temperatures fall, leaving only a small opening around the face. A dedicated pocket keeps the thermal collar drawstrings neatly out of the way during the night.

An insulated zip baffle running alongside the two-way zip further reduces heat loss and helps minimise cold spots along the side of the sleeping bag.

More room for better sleeping comfort

Grüezi Bag places considerable emphasis on ensuring that a sleeping bag does not feel unnecessarily restrictive. More space around the body makes it easier to move and turn inside the sleeping bag, rather than having the whole bag move with you as you change sleeping position.

This is not only about comfort. If a sleeping bag fits too tightly, the body can compress the insulation. As the loft is reduced, its ability to retain warmth can also be reduced.

This becomes particularly relevant in a winter sleeping bag, where the insulation needs to retain its volume throughout the night. For this reason, temperature ratings and weight should not be considered in isolation. A small difference in weight can also reflect a roomier cut and more usable space around the body.

Ice 2.0 is available in three sizes with different overall lengths, shoulder widths and foot widths, allowing you to choose a size that suits both your height and the amount of room you prefer.

Comfort and ventilation across changing temperatures

Even a warm sleeping bag needs effective ventilation. Grüezi Bag’s foot ventilation system allows excess heat to escape – or your feet to rest outside the bag – without having to open the entire sleeping bag.

The pre-shaped footbox provides plenty of room for your feet and toes, while the multi-chamber construction around the foot area helps maintain even insulation in one of the areas most susceptible to feeling cold.

Ice 2.0 also features internal and external pockets for small essentials, a two-way Auto-Lock zip with anti-snag protection and a practical pillow pocket that can be filled with a fleece jacket or other soft clothing to create a comfortable pillow.

Choose the right size

DownWool Ice 2.0 is available in Regular, Long and Extra Long, allowing you to choose a sleeping bag according to both your height and the amount of room you want around the body.

Regular is recommended for body heights up to 175 cm and has an overall sleeping bag length of 200 cm, a shoulder width of 77 cm and a foot width of 50 cm.

Long is recommended for body heights up to 185 cm and has an overall sleeping bag length of 215 cm, a shoulder width of 80 cm and a foot width of 50 cm.

Extra Long is recommended for body heights up to 200 cm and has an overall sleeping bag length of 230 cm, a shoulder width of 85 cm and a foot width of 60 cm.

If you are close to the upper end of a size range and prefer additional freedom of movement, you may want to consider the next size up. At the same time, the sleeping bag should not be unnecessarily large, as a greater internal volume means more air for your body to warm.

Choosing the right size is therefore a balance between freedom of movement, enough room for the insulation to retain its loft and avoiding unnecessary internal volume.

See Grüezi Bag’s size chart in the product gallery for a visual overview of sleeping bag length, shoulder width and foot width for each size.

Recycled materials and DownWool® 2.0

The outer and inner fabrics are made from 100% recycled 20D 380T nylon. The material is lightweight and breathable while also being wind- and water-resistant.

DownWool® 2.0 insulation consists of 70% duck down and 30% mechanically processed wool. The 90/10 down has a fill power of 700+ cuin. Regular contains approximately 652 g of DownWool®, Long approximately 789 g and Extra Long approximately 950 g.

Ice 2.0 is made in Germany and supplied with a compression stuff sack and storage bag.

Technical specifications

• Product: Grüezi Bag DownWool Ice 2.0
• Type: Winter sleeping bag
• T Comfort: −6 °C
• T Limit: −12 °C
• T Extreme: −33 °C
• Recommended temperature range: approx. −6 to +15 °C (Grüezi Bag’s recommendation)
• Insulation: DownWool® 2.0 – 70% duck down / 30% wool
• Down quality: 90/10 duck down, 700+ cuin

Regular

• Recommended body height: up to 175 cm
• Sleeping bag length: 200 cm
• Shoulder width: 77 cm
• Foot width: 50 cm
• Weight: approx. 1200 g
• Fill weight: approx. 652 g
• Pack volume: approx. 8 l

Long

• Recommended body height: up to 185 cm
• Sleeping bag length: 215 cm
• Shoulder width: 80 cm
• Foot width: 50 cm
• Weight: approx. 1400 g
• Fill weight: approx. 789 g
• Pack volume: approx. 10 l

Extra Long

• Recommended body height: up to 200 cm
• Sleeping bag length: 230 cm
• Shoulder width: 85 cm
• Foot width: 60 cm
• Weight: approx. 1600 g
• Fill weight: approx. 950 g
• Pack volume: approx. 12 l

• Construction: Mummy shape
• Thermal collar: 3D thermal collar
• Hood: adjustable hood with Face Baffle
• Zip: two-way Auto-Lock zip with anti-snag protection
• Zip baffle: insulated
• Foot ventilation: yes
• Footbox: pre-shaped with multi-chamber construction
• Pillow pocket: yes
• Pockets: internal and external
• Outer fabric: 100% recycled 20D 380T nylon
• Inner fabric: 100% recycled 20D 380T nylon
• Country of origin: Germany
• Included: sleeping bag, compression stuff sack and storage bag

Variants

• Regular: SKU 5233-4007-175 · EAN 4262522192496 · Night Blue
• Long: SKU 5234-4007-185 · EAN 4262522192502 · Night Blue
• Extra Long: SKU 5235-4007-200 · EAN 4262522192519 · Night Blue

Material composition

Outer fabric: 100% recycled nylon.
Inner fabric: 100% recycled nylon.
Fill: 70% duck down / 30% wool.
Down: 90/10 duck down, 700+ cuin.
Contains non-textile parts of animal origin.