Made from silky 75D polyester inside and out with ThermaPro Ultra Synthetic insulation, this mummy bag has been comfortable and rugged enough for my moderate to warm weather trips.
I found the comfort rating of 40F/4C honest, although with a down coat or added liner I was able to sleep well below that rating. The synthetic insulation works well, as expected from ThermaPro, and additional filling has been added to areas like the hood (for a built in pillow) and foot area.
The zipper system has held up quite well too. They added an additional zipper for those nights where you get too toasty, just unzip a section of the bottom to allow your feet out to breathe.
With additional anchor points on the bag, if so desired, you can strap your bag to a bed mat.
Tuck comes in its own compression sack, with a stuff size around 8”x14”, taking up minimal space in your kit. Total weight of 3 lbs. isn’t horrible either, personally.
(The sizes and weight I described are rated for their “regular” (6’) size but, for the taller (6’ 6”) adventurer, it does come in a “long” with minimal differences in measurement and weight)
Overall, like much of my Kelty products, I have been very happy with this affordable mummy bag.