The Daily Mail announced that Esporta Health Clubs had launched a new line of socks designed to help people lose weight. Dubbed "FatSox," these revolutionary socks could actually suck body fat out of a person's feet as they sweated. The invention promised to "banish fat for ever." The socks employed a patented nylon polymer called FloraAstraTetrazine that had been "previously only applied in the nutrition industry." The American inventor of this polymer was Professor Frank Ellis Elgood. The socks supposedly worked in the following way: as a person's body heat rose, and their blood vessels dilated, the socks drew "excess lipid from the body through the sweat." After having sweated out the fat, the wearer could then simply remove the socks and wash them, and the fat, away.