The THERMOLITE Reactor Extreme liner is Sea to Summit's warmest knitted sleeping bag liner. If your adventures take you to colder climates, the Reactor Extreme will add plenty of warmth to a sleeping bag. Plus in warmer weather, it can be used as a 'stand alone' sleeping bag. The hollow core fibers of the THERMOLITE fabric work like a polar bear's fur and, along with the knitted structure, trap plenty of insulating air. Super soft and amazingly stretchy, the Reactor Extreme uses a heavier version of THERMOLITE to provide extra warmth for an incredibly comfortable night's sleep. Use one to build your cooler-weather sleep system and to help keep your sleeping bag clean too.

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/m fabric is warmer than the 80g/m 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.
ADDED WARMTH
Up to 25 F / 14 C

BEST USE
Backpacking, Camping & Winter Camping

COMES WITH
Ultra-Sil stuff sack

MATERIAL(S)

SHAPE
Mummy

REGULAR MUMMY
COMPRESSED VOLUME 1.5 Liters

DIMENSIONS 208 cm

PACKED SIZE 17 x 11.5 cm

PACKED VOLUME 1.75 L

WEIGHT 399 g

What's in the box
1 x Sea to Summit Reactor Extreme Liner Mummy -Standard