Sierra Designs DriDown Cal 6 Sleeping Bag - REVIEW

Down versus Synthetic is the age old question but for this reviewer it's a mute point. Down is lighter, more compressible and warmer, why choose anything else? The Achilles heal of down has always been its lack of ability to insulate when wet. 

Sierra Designs, however, has taken this factor out of the equation with their invention of DriDown technology. The DriDown process treats normal down with molecular level polymers so that it effectively becomes hydrophobic. This term literally means "water-fearing" so you know it will keep your sleeping bag dry even in wet conditions. As you can see below DriDown numbers are pretty impressive:

1. Stays dry 10-times longer than untreated down.

2. Has 2.7 times more loft than untreated down when exposed to moisture and humidity.

3. Dries 33% faster then untreated down.

Read the other many reasons why this bag is at the top of our list when it comes to warm and comfy three season sleeping bags.