Made with PrimaSoft, the underwear and socks available from PULSE Activewear stand out from other baselayer fabrics. The fabric is naturally very soft while providing excellent moisture-wicking and staying odor resistant. I was fortunate enough to try their V-Neck Sports Bra and Fitness Thong Panty for various activities and I am impressed. I wore the set running, cycling, during yoga, and snowshoeing. They kept me dry during the most vigorous activities and I felt comfortable the whole time. I will definitely bring these on my next camping trip. I feel 100% confident they will hold up for multi-day wear based on the fabric properties and design. I also put them through a few wash cycles and they held their shape beautifully and came out just as soft, if not softer than before, and wrinkle-free.
As far as the cut of the items I tested, they really worked for me. While they have a Fitness Brief Panty available for women I am a thong girl (yes I know: "LA LA LA Too Much Information"). However, when you're frequently wearing bike shorts and yoga pants the thong is your friend. The cut of the thong is generous while still serving as a low-profile garment. I really liked the V-Neck Sports Bra. It feels feminine while still maintaining some modesty. It is also great as a layer under more low cut items.
While I am not one of the men folk, I know most of my guy friends are boxer or boxerbrief types. I have heard it isn't easy to find these in wool but PULSE offers both as well as an undershirt for men. They also offer a year-round sock for men and women.