Highlights
BEST USE: Camping, Overlanding, Van Life
PERFORMANCE: 2 Season
WEIGHT: 2lb 7.5oz | 1119g
COMPRESSED VOLUME: 8.2L
LOWER TEMP RATING: 30°F | -1°C
Description
If you've ever wished for a less-constrictive sleeping bag that keeps you comfortable in a variety of cool-to-warm conditions, the Trek may become your go-to bag. The Free-Flow Zip system allows you to open the bag sequentially for ventilation up to the point where it is ...
Product Details
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Sea to Summit tests its sleeping bags for their temperature rating using the ISO 23537 test protocol. This test gives two key ratings: Lower Limit and Comfort Rating.
Lower Limit: The lowest temperature at which a man should stay warm.
Comfort Rating: The lowest temperature at which a woman should stay warm.
Sea to Summit Women’s-specific sleeping bags are listed using the Comfort Rating. Unisex bags are listed using the Lower Rating. For example, if the bag is rated at Lower Limit of 14°F | -10°C and Comfort rating of 27°F | -3°C, it should keep a woman warm down to 27°F | -3°C and a man warm down to 14°F | -10°C, if they are wearing warm clothes and using a good sleeping pad.
Remember: These ratings are just guidelines. Movement, weather, and your gear setup can all affect how warm you actually stay.
Pro Tip: Think of your sleeping bag, pad, and liner as a system. If you expect 28°F | -2°C weather, choose a sleeping bag rated for 23°F | -5°C, use a sleeping pad with an R-Value of 3 or more, and add a liner for extra warmth.
Description
If you've ever wished for a less-constrictive sleeping bag that keeps you comfortable in a variety of cool-to-warm conditions, the Trek may become your go-to bag.
The Free-Flow Zip system allows you to open the bag sequentially for ventilation up to the point where it is opened flat as a quilt - you can even secure the snaps around your shoulders, open the footbox zipper and 'wear' the Trek around camp.
650+ fillpower duck down with a non-PFAS Ultra-Dry Down treatment keep you insulated in damper conditions. Slip an Aeros Pillow into the hood and enjoy a great night's sleep - wherever your travels take you.
Design Details
Technical Features
650+ Loft Ultra-dry Down
Free Flow Zip
Responsible Down Standard (RDS)
Non-PFAS
Tech specs
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Best UseCamping, Overlanding, Van Life
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Comes With40D recycled, bluesign APPROVED nylon compression bag
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InsulationRDS certified, 650+ non-PFAS Ultra-Dry Down
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ShapeTapered rectangular
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Zip OptionsFree-Flow zipper system
30°F Regular | 30°F Long | 15°F Regular | 15°F Long | 0°F Regular | 0°F Long |
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Versatility for any adventure
Frequently Asked questions
What are the differences between the Trek and the Ascent?
Can Treks be zipped together?
Is the Trek suitable for warmer weather?
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