You’ve heard of cotton, linen, and even hemp undies, but what about seaweed? Yes, seaweed that drifts past you in the ocean, is the fabric of Esme underwear. This female-founded brand has changed my relationship to undies. The powerful seaweed material is phenomenal; from a silky and smooth texture that is cool against the skin to the eco-friendly and ethical production without the harsh chemicals like other brands. Esme comes in staple colors (black, white, and sage green) with a full coverage brief and thong style. Esme undies have withstood hard work outs, running around to classes, and most importantly: that time of the month. Grab a pair or three on their website here!