If you haven't tried women's wool underwear before, you should. From bikini briefs to seamless bras, our women's wool underwear puts ultra-comfy Merino next to skin to help regulate body temperature, manage sweat, and resist odor for all-day comfort. With features like flatlock stitching and fun colors, this is the best underwear for women whether you're heading to yoga class or planning on spending a few months hiking the Pacific Crest Trail.