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Highlights
SECOND SUMMIT: Let's give gear a second chance. Shop our expertly inspected, pre-owned gear delivered to you in like new condition and protected by the Sea to Summit Guarantee.
BEST USE: All outdoor activities
PERFORMANCE: 2 Season
WEIGHT: 1lb 14oz | 850g
COMPRESSED VOLUME: 5.5 liters
LOWER TEMP RATING: 30ºF | -2ºC
Description
The Trek down sleeping bag brings the comfort of a tapered-rectangular mummy shape and the versatility of a dual-zip ventilation system to wherever your travels may take you. The full-length side zipper and second...
Product Details
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The EN Rating scale is a scientific test to determine the warmth of a sleeping bag. The test produces a Lower rating (for male sleepers) and a Comfort rating (for female sleepers). Both are listed in the features table on the product page.
A unisex sleeping bag with a Lower limit of 14ºF means a man should be comfortable down to air temperatures of 14ºF. The same bag will also have a Comfort limit, in the realm of 27°F, so a woman would be comfortable down to an air temperature of 27ºF. These ratings require a sleeping mat with an R-Value appropriate for expected ground temperatures – without this, the sleeping bag itself is unlikely to keep the sleeper warm enough.
A variety of factors impact sleeping bag warmth - the above temperatures are merely guidelines, not guarantees. It’s important to think of a sleeping bag, an appropriately insulating sleeping pad and a liner as a sleep system. For example - if you plan on sleeping in nighttime air temperatures of 27ºF / -3°C, choose a bag with a gender-appropriate rating of 23°F / -5°C, plus a sleeping mat with an R-Value of 2.5 to 3, and consider a Reactor thermal liner.
![30 || Trek Down Sleeping Bag Regular](http://seatosummit.com/cdn/shop/products/TrekTK1_Regular.jpg?crop=center&height=120&v=1681416802&width=120)
![Description || Trek Down Sleeping Bag](http://seatosummit.com/cdn/shop/products/STS-Description-image-Trek.jpg?v=1684338541&width=1500)
Description
The Trek down sleeping bag brings the comfort of a tapered-rectangular mummy shape and the versatility of a dual-zip ventilation system to wherever your travels may take you. The full-length side zipper and secondary foot box zipper allow you to increase ventilation or open the Trek completely flat like a comforter, and the quality down will keep you warm and snug on chilly nights.
The broader mummy cut gives you room to move inside the bag, regardless of your sleeping position. A Regular Wide model is available for those who really appreciate the extra wiggle room.
Light and compact, the Trek might just become your favorite trekking / backpacking / travel / camping / down sleeping bag.
Tech specs
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Best UseAll outdoor activities
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Comes WithUltra-Sil Compression Sack & Storage Cube
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InsulationUltra-Dry Down 650+ Loft
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ShapeRelaxed Mummy
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Shell Fabric30D Nylon Shell
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Zip OptionsFull length left side and foot box zipper. Unzip fully to use as quilt or comforter. See ‘Features’ for bags which can be coupled to the Trek.
30°F Regular | 30°F Regular Wide | 30°F Long | 18°F Regular | 18°F Long | 18°F Regular Wide |
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