Nope. Not at all! Our undies have an organic cotton inner layer in the crotch - the one touching your skin - that is wicking the liquid inside very quickly (so that you also feel dry!). Once the liquid reaches the second layer made of microfiber, the PHBV/PLA inside works on fighting bacteria and odors to keep you fresh and odor-free. Just make sure to care for them properly and wash them to keep things fresh.