The loft of Fiberdown is comparable to that of 80/20 down. Fiberdown does not clump when damp, and even then offers outstanding insulation and warmth. Fiberdown’s unique properties ideally complement down sleeping bags at key areas where moisture in one’s breath can dampen down so that it can no longer insulates optimally.


  • Best loft of all synthetic fibers
  • Insulates extremely well even when damp
  • Durable and easy to maintain

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