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RDS stands for RESPONSIBLE DOWN STANDARDS and indicates comitment to ethical sourcing of natures finest insulator (read more here).

A very warm sleeping bag suited for winter and expedition use with a comfort range of -6 degC to -16 degC 

Drawing on decades of know-how and expertise, SALEWA® has created the Diadem range of sleeping bags. Combining traditional craftsmanship with innovative performance, these high-performance expedition down bags provide superior warmth in even the coldest climates. The Diadem Ultrawarm is the second warmest bag in the collection – rated to -16°C (with a Extreme temperature rating down to -34°C). It features an ergonomic fit and its hood has been carefully designed for thermal efficiency without compromising on weight. This exceptional bag is filled with 90/10 goose down sourced from Responsible Down Standard (RDS) certified providers to guarantee that ducks and geese are raised in accordance with animal welfare standards, without any force-feeding or live plucking. Boasting 750 cuin of fill power, this 900 gram masterpiece promises reliable comfort even when facing extreme temperatures.

Being a naturalally occuring material is ecologically better than synthesised materials - requiring energy to produce and do not bio-degrade.

When sub-zero temperatures and challenging conditions strike, it's time to break out your Diadem Ultrawarm sleeping bag. This mountain performance-tapered fit reduces air gaps while maximizing thermal efficiency and minimizing weight. You'll stay cozy all night with a full-length two-way anti-snagging YKK zip, large insulating draft tube, pre-formed thermo collar that locks in heat, ergonomic footbox with a special baffle system for added warmth, and drawstrings with singlehanded pullers for convenience in extreme weather. Plus, you can connect this product to another cross-connectable item to form a double bag! And don't forget about an internal pocket for extra storage space and a water repellent dry bag/storage bag included for easy maintenance of lofted down insulation. Designed to fit and work best up to 185 cm; rest assured that you'll be prepared no matter how cold it gets!

Temperature Range Chart
Comfort Rated Limit Extreme Limit
-6 deg C -16 deg C -34 deg C

Our (Vertigo) opinion regarding sleepingbag temperature range's is to decide on your needs based on manufacturer's comfort recommendation. When comparing agains other brands, compare fill quality & fill weight - those are the only metrics that are not subjective.

  • Fill Power 750 cuim
  • Fill Quality
    90/10
  • Fill Weight
    900g
  • Total Weight
    1510g
  • Responsive Technology
    Thermoregulation & Recovery
  • Zipper Length
    Full
  • Compatibility
    Easily connected to other Salewa S/Bags

More Features

  • Very warm!
  • Ergonomic foot section
  • One-handed draw strings use
  • Compression option
  • Insulating draft tube
  • Thermo collar
  • PFC-free
  • Inner pocket for valuables
  • Functionally cut hood
  • Storage bag
  • Optimized Shape
  • Dry Bag Included
Temperature Range Chart
Comfort Rated Limit Extreme Limit
-6 deg C -16 deg C -34 deg C
  • Fill Power
    750cuim
  • Fill Quality
    90/10
  • Fill Weight
    900g
  • Total Weight
    1510g
  • Body size 185 cm
  • Foot Width 32 cm
  • Knee Width 53 cm
  • Height` 210 cm