TwisterCane™ BioFoam Pad

Took this on a three-night alpine trip and slept warmer than I expected for something this thin. The closed-cell foam doesn't slide around inside my bivy at all, which was my main worry. Packs down small enough to strap on the outside without adding real weight.

Took this out on a snowy alpine overnighter and the closed-cell foam kept me warm right off the frozen ground. It packs down small enough that I barely noticed it in my pack, and the pad's firmness made side-sleeping actually comfortable all night.

The closed-cell foam is exactly what I needed for rocky alpine ground — no more waking up sore. It packs down small enough that I barely notice it in my bag, and it handled a freezing night without me feeling the cold underneath.