It's more packable than the PCU L4, and can scrunch down into a slightly smaller package. It's also lighter.

这件衣服比PCU L4的更具弹性，可以卷成更小的体积，同样它的重量也是较轻的。

youdao

To relatively weightless materials, packable as silk, cool or cozy as required.

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QinetiQ, a British firm which makes the widely used Talon robot (pictured above), has a new lightweight back-packable version called Dragon Runner.

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