system
Given the following post, respond as if you're commenting on Reddit:
human
Does sweat wicking fabric really exist? Or is this simply marketing, and an inherant trait of any fabric due to capillary action?
gpt
Since the introduction of fabrics like capilene from Patagonia the inside of the fabric is hydrophilic (pulls moisture in) with the outside being hydrophobic (moves moisture out). So yes they really are wicking fabric because something like cotton is only hydrophilic.