Thermarest Parsec 0F/-18C

The Thermarest Parsec 0F/-18C is a down-filled sleeping bag for year-round use. The comfort temperature is -10° Celsius, weighing only 1,100 grams in size M.

The filling is made of 900 cuin RDS hydrophobic duck down. With 762 grams of filling for size M and 857 grams for size L. The compression is excellent, which means it takes up little space in your rucksack. An additional compartment at the foot end is useful for warming your feet quickly and avoiding catching cold on the chilliest nights.

It features differential padding: the insulation layer is denser on the top than on the back, which reduces the overall weight and concentrates heat in strategic areas. On the back, your mattress acts as insulation, which makes sense, since when you sleep, your weight compresses the padding, limiting its thermal contribution. This is why the Parsec 0F/-18C comes with two SynergyLink straps to hold your sleeping mat under the sleeping bag. This prevents you from sliding off the mat and optimises insulation!

• Zone insulation: maximises warmth and minimises weight.


• 2 Synergylink straps to connect a mattress under the sleeping bag, thereby improving comfort.


• At the feet, the partitioned construction provides good insulation and keeps your feet warm.


• Wrap-around hood and collar to prevent heat loss.


• Protective flap on the two-way zip fastener.


• External pocket with zip for storing small accessories.


• External loops for attaching a Therm-A-Rest duvet or blanket.