UL Recovery Sleeping Bag Liner

The CELLIANT fabric actually seems to do something — I woke up less stiff after a long day of hiking than I usually do. It's thin enough to stuff in a corner of my pack, and it kept my bag cleaner too.

Slept in this liner for three nights on a cold section of the trail and woke up noticeably less stiff than usual. The CELLIANT fabric is thin enough that it barely adds weight to my pack, which is exactly what I wanted.

Wasn't sure the CELLIANT fabric would do anything, but I woke up genuinely less stiff after a long day of hiking. It packs down tiny in my bag, which matters when every ounce counts.