Silicone wristband will absorb sweat, but it has little effect. We talked about that silica gel is porous and has a strong water absorption capacity in the chemistry class of senior one. It is often used as a drying agent for laboratories and bagged food (this is what I said in my chemistry textbook for senior one). Don't worry, because silica gel only absorbs free water, the water in cells will not be sucked away, otherwise no one will buy Nike wristbands, hehe.