Comfort is not one-size-fits-all, which is why the shape of the Boost 650 can be customised to find the perfect balance between freedom of movement and warmth. As a spacious, semi-rectangular sleeping bag, the Boost offers the space you need for side sleeping, turning over, stretching out and relaxing. The semi-rectangular shape offers much more space inside than a mummy sleeping bag - you feel free and can sleep in any position you want all night long. But more space requires more body heat to keep the body warm. This is where the WarmZip comes in. The raised zip transforms the shape of the Boost 650 from a semi-rectangular sleeping bag into a thermally efficient mummy sleeping bag. This distributes the down around the body and reduces the space that the body needs for warmth. With the WarmZip, the heat output of the Boost can be increased by up to 6 °C
Filling material | Synthetic fibres |
Comfort temperature up to | 0 °C |
Length | 203 cm |
Weight | 1150 g |
Item number | 53646138 |
Manufacturer | Therm-a-Rest |
Category | Sleeping bags |
Manufacturer no. | 14203 |
Release date | 16.12.2024 |
Colour | Blue |
Exact colour description | Morning blue |
Material outside | Nylon |
Inside material | Nylon |
Filling material | Synthetic fibres |
Sleeping bag type | Mummy bag |
Zipper side | Left |
Comfort temperature up to | 0 °C |
Limit temperature | -6 °C |
Season | Winter |
Pack size | 19 x 32 cm |
CO₂-Emission | |
Climate contribution |
Length | 203 cm |
Weight | 1150 g |
Length | 37 cm |
Width | 37 cm |
Height | 44 cm |
Weight | 1.37 kg |
How often does a product of this brand in the «Sleeping bags» category have a defect within the first 24 months?
Source: Digitec GalaxusHow many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
Source: Digitec GalaxusUnfortunately, we don't have enough data for this category yet.
How often is a product of this brand in the «Sleeping bags» category returned?
Source: Digitec Galaxus