Cosmic 20 vs Bishop Pass 30F Down
Bishop Pass 30F Down is the lighter of the two by 17 g (0.6 oz).
Cosmic 20 lists for $125.04 less at the manufacturer's price.
Per ounce carried, Cosmic 20 costs less: $4.87/oz against $8.20/oz.
Weights and prices are the manufacturer’s published figures. The best value in each row is highlighted.
| Cosmic 20 Kelty | Bishop Pass 30F Down Mountain Hardwear | |
|---|---|---|
| Weight | 39.0 oz | 38.4 oz |
| MSRP | $189.95 | $314.99 |
| Temperature rating | 20°F / -7°C — manufacturer's stated rating (Kelty), not independently tested; the maker publishes no ISO 23537 or EN 13537 figure | 30°F / -1°C (manufacturer rating, not independently ISO 23537 / EN 13537 tested) |
| Price per ounce | $4.87/oz | $8.20/oz |
| Retailers | 1 | 1 |
Cosmic 20
Kelty's Cosmic Down 20 is a 550-fill-power down mummy bag in a semi-rectangular cut, 1106 g in the Regular length. Fill power measures the loft of a given mass of down: 550 is a modest figure, so the bag reaches its rating with more down mass and therefore more weight than an 800-fill bag would. Kelty publishes a 20 F rating as its own number and does not publish ISO 23537 comfort or limit figures, so it cannot be compared directly with bags that do.
Full specs and prices for the Cosmic 20 →Bishop Pass 30F Down
The Mountain Hardwear Bishop Pass is a versatile down mummy bag with 650 fill power down, a full-length draft tube, and a 20D nylon ripstop shell with DWR. The 30-degree model is a three-season backpacking bag with a strong warmth-to-weight ratio.
Full specs and prices for the Bishop Pass 30F Down →