20-Degree Mummy Bag vs Riff Down

20-Degree Mummy Bag is the lighter of the two by 249 g (8.8 oz).

Riff Down lists for $200.05 less at the manufacturer's price.

Per ounce carried, Riff Down costs less: $12.16/oz against $23.03/oz.

Weights and prices are the manufacturer’s published figures. The best value in each row is highlighted.

20-Degree Mummy Bag

Hyperlite Mountain Gear

Riff Down

NEMO

Weight
28.2 oz
37.0 oz
MSRP
$650.00
$449.95
Temperature rating
15°F / -9°C (manufacturer rating, not independently ISO 23537 / EN 13537 tested)
Price per ounce
$23.03/oz
$12.16/oz
Retailers
1
1

20-Degree Mummy Bag

Wrap up your day with the 20-Degree Mummy Bag, sewn up to perfection for exceptional warmth, compressibility, and comfort without unnecessary bulk. Premium 1000 fill power grey goose down treated with a DWR finish provides maximum loft and reliable insulation, while 3-dimensional baffles allow the bag to fully loft to 2. 75 inches for efficient heat retention.

Full specs and prices for the 20-Degree Mummy Bag

Riff Down

The NEMO Riff is NEMO's down backpacking bag on the signature Spoon shape, with 800 fill power hydrophobic down and Thermo Gill vents that let side sleepers dial in temperature. The 15-degree men's model is a three-season-plus down bag.

Full specs and prices for the Riff Down