Sea to Summit Thermolite Reactor Extreme
Sea to Summit Thermolite Reactor Extreme
Sea to Summit Thermolite Reactor Extreme
Sea to Summit Thermolite Reactor Extreme
Sea to Summit Thermolite Reactor Extreme
Sea to Summit Thermolite Reactor Extreme Sea to Summit Thermolite Reactor Extreme Sea to Summit Thermolite Reactor Extreme Sea to Summit Thermolite Reactor Extreme Sea to Summit Thermolite Reactor Extreme

Sea To Summit

Sea to Summit Thermolite Reactor Extreme

$54 $68

Sea to Summit Thermolite Reactor Extreme

The THERMOLITE® Reactor Extreme liner from Sea to Summit is their warmest knitted sleeping bag liner. By utilising hollow core fibres and a knitted structure that effectively traps insulating air, it can provide substantial additional warmth for colder climates. Additionally, it can double as a 'standalone' sleeping bag for use in milder weather. Constructed with a heavier version of THERMOLITE® fabric for superior comfort, the Reactor Extreme is both incredibly stretchy and soft to the touch. Use it to build your low-temperature sleep system and maintain the cleanliness of your sleeping bag.


Sea to Summit Thermolite Reactor Extreme Features

  • Traps insulating air to increase warmth of a sleeping bag by up to 25°F / 15°C
  • Stretchy, Thermolite® fabric is incredibly comfortable.
  • 110g/m² fabric is warmer than the 80g/m² Thermolite® used in the standard Reactor.
  • Technical mummy-shape with drawstring hood.
  • Easy care – machine wash with no special soap needed. Avoid fabric softeners and dryer sheets.
  • Keeps sleeping bag clean.
  • Packs into its own Ultra-Sil stuff sack.

Sea to Summit Thermolite Reactor Extreme Specifications

  • Length - 210cm
  • Width - 90cm
  • Weight - 399g

  • Packed Size: 6.5 x 4.5 in | 17 x 11.5 cm