Tag: 900-fill down

Down Sleeping Bags Migrate Towards 900-Fill

Sierra Designs Cloud Sleeping Bag

In the quest to design the lightest, warmest, sleeping bag on the market, the name of the game seems to be 900-fill down. Sierra Designs has joined the race with Marmot, The North Face and others by launching their new Cloud 15, an ultralight, highly compressible 15 degree down sleeping bag. 

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