Product Brand


Omni-Heat™ Reflective

Make Your Own Heat

Keep your warmth. Not your sweat.

This breathable warming technology helps regulate your temperature with little silver dots that reflect and retain the warmth your body generates.


  • Reflects body heat
  • Highly breathable
  • Reduces your need for bulky layers
  • Wicks moisture to keep you dry and comfortable

Reactor™ 25 Mummy (Long)

When camping in the shadow of Mount of the Holy Cross, your camera battery better be charged and your sleeping bag better be warm. Constructed with toasty Thermix insulation and an Omni-Heat® thermal reflective lining that traps and recirculates your body heat while providing breathability, the Reactor 25 Mummy is built to keep you comfortable on chill-laden alpine overnighters.
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Style #U1249600

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Estimated ship date: 21 Apr, 2014
Estimated arrival date (Standard Shipping): 23-24 Apr, 2014
Estimated arrival date (Express Shipping): 22 Apr, 2014
See it in Action


Warmth in Cold Conditions.
Thermal Reflective
This technology helps regulate your temperature by reflecting & retaining the warmth your body generates, while dissipating moisture & excess heat to keep you comfortable.


Cushioned, blocked, shielded and shaded.
Resist Rain
and Stains
This rain and stain barrier resists light rain and stains, keeping you clean and protected. Omni-Shield delivers protection from the outdoors where you least expect it but need it most.
A draft tube along the zipper prevents it from becoming a cold spot, while the face gasket cinches down to keep crucial head heat in. Featuring a sleek, super soft texture, the shell fabric is outfitted with Omni-Shield® advanced repellency to keep out the wet—and it’s sewn with off-set quilting so there’s no kinks in your cold-fighting armor. A trapezoid toe box provides plenty of room for foot comfort. The Reactors are engineered with your choice of a right or left-hand zipper so they can be zipped together to make a couple’s bag.

  • Fabric: 100% nylon
  • Omni-Heat thermal reflective lining
  • Omni-Shield advanced repellency
  • Stash pocket
  • Offset quilt construction
  • LH/RH zip together
  • Trapezoid footbox
  • Sleeping pad retention loops
  • 7.5” x 19” compression sack included
  • Thermix MX™ Insulation
  • Draft tube
  • 46oz average weight
  • Long fill weight: 34oz average weight
  • EN T-Comfort: 41 degrees F/5 degrees C
  • EN T-Limit: 31 degrees F/-1 degrees C
  • EN T-Extreme: 3 degrees F/-16 degrees C
  • Long fits 6’6” person
  • Imported