Ultra -10° M Down Sleeping Bag

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UOG TOP PICK—Exped’s Ultra -10° Down Sleeping Bag offers warmth due to its 850 down fill and H baffles. It has a hood with an adjustable neck guard, reversible zip pull, and an inner pocket for extra protection. The bag provides ample shoulder room while minimising cold spots. It’s one of our top picks for cold weather.

Exped says: 

The Ultra -10 ° is an extremely lightweight, compact 3-season sleeping bag for those who do not compromise in their equipment selection.
Perfect for trekking, long-distance hiking, mountain touring and bivouacs. For all those who are looking for a lightweight sleeping bag with the widest possible range of use. With the Ultra -10°, the pack weight can be reduced to an absolute minimum.

The filling of finest, RDS-certified goose down with 850+ cuin fill power gives it an excellent, uniform thermal performance. The circumferential, I-beam down baffles allow the down to be shifted as needed, adapting the sleeping bag to the given outside temperature and the sleeping mat being used.

However, the focus of the Ultra series is not only on the filling, Exped also employs only the finest of the finest when it comes to manufacturing. Pertex Quantum is applied as the shell fabric, which is made entirely of recycled polyamide. Components such as the zipper and webbing are made of recycled PET bottles.
The Ultra sleeping bag features the intricately designed, comfortable 3D triangle footbox, and the zipper flap prevents unpleasant cold spots. The adjustable elliptical draft collar nestles around the neck, minimizing draft and heat loss.

The Ultra sleeping bag is available in five different sizes – so anyone can find the right option!

Our Verdict

The Exped Ultra -10°C L Down Sleeping Bag is a standout option for hikers and trekkers who prioritise warmth and minimal pack weight. This sleeping bag is designed to excel in cooler temperatures.

Exped’s focus on high-quality materials is evident in the Ultra -10°C. The bag’s insulation consists of 850+ cuin fill power RDS-certified goose down, ensuring exceptional thermal performance. This high fill power, combined with the innovative I-beam down baffles, allows users to adjust the down distribution to match the outside temperature, optimising warmth and comfort.

Regarding temperature ratings, the Ultra -10°C provides a comfort temperature of -3°C and a limit temperature of -9°C, making it suitable for colder nights in spring, autumn, and winter. 

This sleeping bag is remarkably lightweight, given its warmth capabilities. Using Pertex Quantum recycled polyamide for the shell fabric and components made from recycled PET bottles highlights Exped’s commitment to sustainability without compromising durability. The 3D triangle foot box and adjustable elliptical draft collar are thoughtfully designed to minimise heat loss and enhance user comfort.

The practical features, such as the glow-in-the-dark zipper puller, anti-snag stiffener, and reinforced sewing in sensitive areas, contribute to its user-friendly design. These details ensure that the Ultra -10°C is warm and easy to use, even in challenging conditions.

– Reviewed by Ultralight Outdoor Gear

Features

• The thick draft tube backing the YKK zipper provides excellent heat retention. The anti-snag stiffener ensures smooth operation of the zipper.
• The elliptical draft collar with elastic cinch cord allows the collar to be fully closed over the shoulders, keeping warmth inside the sleeping bag with reduced material bunching.
• The elliptical draft collar can be closed with a snap to ensure all-round insulation.
• The Hood and Draft collar can be cinched closed and adjusted with cords.
• The large zipper garage keeps the zipper head away from the face.
• The glow-in-the-dark zipper puller makes it easier to find.
• The double ended zipper has reinforced sewing to increase strength in sensitive areas.

Specifications

• Weight: 989g
• Comfort temperature: -3 °C
• Limit temperature: -9 °C
• Extreme temperature: -28 °C
• Fill Weight: 650g
• Up to body size: 180cm
• Length: 203cm
• Shoulder Width: 155cm
• Foot Width: 96cm
• Packed Dimensions: 25 x 20 x 16cm

Material & Construction

Shell Fabric:

• 10 D recycled ripstop nylon
• bluesign® certified
• PFC free

Liner:

• 15 D ripstop nylon
• Oeko-Tex® 100 certified

Fill:

• 850+ cuin/oz premium european 90/10 (EN-Standard) goose down
• RDS certified
• Oeko-Tex® 100 certified
• Fill Weight: 650g

Help & advice:

• The Ultimate Guide to Lightweight Sleeping Bags
• Time-Saver Guide to Choosing a Sleeping Bag
• The EN13537 Standard
• Down Quality
• All About Down
• Hydrophobic Down
• Recycled Content in Outdoor Gear
• About Exped
• Why is ‘PFC Free’ Important?
• What is Bluesign?