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Men's DriDown Cal 13 Sleeping Bag (Regular)
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Sierra Designs   Men's DriDown Cal 13 Sleeping Bag (Regular)

Stuffed with game-changing hydrophobic DriDown insulation, the ultralight, 800-fill Cal 13 is a go-anywhere, sleep-everywhere bag for weight-conscious backpackers. At 1-lb, 12-oz, the Cal 13 features InsoTect Flow vertical baffles, an ultralight jacket-style hood, 40 inch zipper, and 10D nylon ripstop shell and liner to shave weight.


  • Patented vertical baffle construction
  • Ergonomically shaped footbox
  • Ultralight Jacket Hood
  • Thermally efficient 40 in. zipper
  • Snag-free zipper tracks
  • Zipper draft tube
  • Draw cord at collar with captured cordlock
Simply put, DriDown represents the evolution of down insulation. Regular down is treated with a molecular level polymer to create a hydrophobic finish on each individual down plume. This finish allows DriDown to stay dry longer, loft better, and dry faster than untreated down, keeping you warmer in any environment.
  • Stays Drier: Stays dry 10 times longer than untreated down.
  • Keeps Warmer: Retains 170% / 2.7 times more loft than untreated down when exposed to moisture and humidity.
  • Dries 33% faster than untreated down.
Style 00600313RL  |   This Item is Currently Out of Stock.

Sierra Designs Men's DriDown Cal 13 Sleeping Bag (Regular)

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Type: 3 Seasons Mummy
Temperature Rating: 15° / -9°C
Shell: 10D Nylon Ripstop
Insulation Fill: 800 Fill-Power Goose DriDown
Length: 78 in. / 198 cm
Max User Height: 6 ft / 183 cm
Shoulder: 62 in. / 157 cm
Hip: 56 in. / 142 cm
Foot: 38 in. / 97 cm
Stuffsack Size: 8 in. / 20 cm x 14 in. / 35 cm
Total Weight: 1 lb 12 oz. / .79 kg