Extreme swimmers, ice swimmers, channel swimmers and marathon swimmers seem to have thick skin. While they explore the outer boundaries of what is physically possible, these aquatic adventurers apparently truly have thick skin.
Bryan Finlay of Solo Swims of Ontario recalls, “In my experience, there is a particular feature of some ultra-marathon swimmers that I have noticed over the years.
It came from my observations in the 1960s while conducting studies on the biomechanics of skin. On a number of these long-term cold-water-tolerant swimmers, it is difficult to create a Skin Fold to measure skin thickness; their subcutaneous fat and possibly other tissues seem to be more intimately attached to the dermis.
[The swimmers] apparently have Thick Skin – which is great for maintaining the temperature gradient between their core and surrounding water.”
But it appears this physical characteristic is a gift, not a form of protection to develop. As Finlay explains, “This observation does not necessarily explain the short-term ability of some swimmers to swim at 0°C like Lewis Pugh. It also seems that this feature of the skin is not something that you can acquire.”
Photo above shows the men of the Patagonia Extreme Cold Water Challenge exiting from the cold ocean.
Southern California native, born 1962, is the creator of the WOWSA Awards, Oceans Seven, Openwaterpedia, Citrus Corps, World Open Water Swimming Association, Daily News of Open Water Swimming, Global Open Water Swimming Conference. He is Chief Executive Officer of KAATSU Global and KAATSU Research Institute. Inductee in the International Marathon Swimming Hall of Fame (Honor Swimmer, Class of 2001) and Ice Swimming Hall of Fame (Honor Contributor - Media, Class of 2019), recipient of the International Swimming Hall of Fame's Poseidon Award (2016), International Swimming Hall of Fame's Irving Davids-Captain Roger Wheeler Memorial Award (2010), USA Swimming's Glen S. Hummer Award (2007, 2010) and Harvard University's John B. Imrie Award (1984). Served on the FINA Technical Open Water Swimming Committee and as Technical Delegate with the 2011 Special Olympics World Summer Games, and 9-time USA Swimming coaching staff. Note: WOWSA only recommends products or services used or recommended by the community. WOWSA does not receive compensation for links or products mentioned on this site or in blog posts. If it does, it will be indicated clearly on that specific post. See WOWSA's privacy policy for more information.