BRANWYN Essential Bikini Briefs: comfort meets sustainability. These briefs are made from super-fine Merino wool that keeps you dry, comfortable, and funk-free during any activity. The seamless design and comfort waistband eliminate digging and rolling, creating a barely-there feel. Moreover, the ZQ, OEKO-TEX, and Responsible Wool Standard certified Merino is regenerative and sustainable. Great in and around water, these briefs dry in the blink of an eye.