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Sea to Summit

Trek TKI

$249.00 USD MSRP

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Product Information

Incorporating our 2D PermaShell fabric and a premium 650+ Loft ULTRA-DRY Down, the Trek bags are a refined classic. The 60/40 fill ratio in the Trek bags is maintained using a side block baffle and differential cut shell. In the top of the shell a 3D side wall, a feature normally reserved for technical alpine sleeping bags, provides more space for the down to loft right to the edge of the bag.