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FK Bivy

Out Of Stock
Unique "frog-mouth" opening provides easy entry and enough headroom that you'll never feel claustrophobic.

Specs & Details

  • Unique "frog-mouth" opening allows easy entry into sleeping bag regardless of zipper orientation
  • Twin arch pole construction provides ample space for increased headroom
  • Sewn in strap to keep your sleeping pad firmly in place
  • Use with the FK Tarp for full  water protection or alone for protection from wind and bugs

Size Regular:
  • Minimum Weight: 6.6 oz / 188 g                                   
  • Packed Weight:  8.8 oz. / 249 g
  • Length:  82 in / 208.3 cm
Size Long:
  • Minimum Weight: 7.2 oz / 204 g
  • Packed Weight: 9.3 oz. / 265 g
  • Length:  88 in / 223.52 cm



  • 7D Nylon Micro-ripstop, light Cire, with PU kiss-coat
  • 20D Nylon Ripstop, calendarized, with Silicone outer and PU inner face
  • Product Reviews


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    1. Justin

      The FK Bivy does two things really great: it protects your sleeping bag + sleeping pad from the ground, and it protects YOU from bugs. It takes no time to set up - if you're in a huge rush, and it's mild outside and not buggy, you can get away with not even using the poles. If you're going very UL, you can experiment with using a sleeping bag with a slightly cooler rating on it (a 35, instead of a 30 degree bag, in other words), as the bivy will act as an additional layer - experiment! The top of the bivy is very sheer and BREATHABLE, so condensation during the night in your sleeping bag will be kept to a minimum. This isn't an emergency bivy for alpine climbs, so if you think there's a chance you'll experience bad weather (and have no other shelter options available to you, like a lean-to, or a cave), you would want to pair this with something like the Ultimate Direction FK Tarp.

      I moved to the FK Bivy from a sil nylon UL bivy, which had no poles, or any way really to keep the bivy out of my face. The sil-nylon fabric of the entire bivy made it a sure thing I woke up every day pretty wet, which degraded the warmth of my sleeping bag, and gave me the task of needing to dry it out later - ugh! Not being able to close the bivy led to mosquitoes biting my head, or the escape of heat from the opening I needed to stick my head out. Both are NOT problems of the FK Bivy. Hurray!
      on Oct 1st 2017