Underwear should be comfortable. Plain and simple. If long-lasting comfort is what you’re looking for in your first layer, look no further than the Women's Everyday Merino Bikini. This lightweight , breathable underwear combines the natural benefits of Merino wool with the softness and cooling properties of TENCEL™ Lyocell  fiber. So soft, so comfortable, it’ll feel like you’re not wearing any underwear at all.