This new line of wetsuits features an innovative built-in shark shield.
Researchers have detailed how newly designed bite-resistant wetsuits offer substantial protection against the formidable teeth of white and tiger sharks, as published on September 25 in Wildlife Research. These advanced materials are engineered to prevent large lacerations and punctures, which are significant contributors to fatal blood loss during shark encounters.
Generally, sharks do not pose a threat to humans. In 2024, there were 71 reported shark bites worldwide, with only seven resulting in fatalities. Although the number of bites has remained stable or even decreased in select areas, the total incidents of shark bites have seen an overall increase over the past 40 years. “This has raised public concerns about shark bites and what measures can be implemented to mitigate the risks,” states Charlie Huveneers, a marine biologist at Flinders University in Adelaide, Australia.
Current technologies, including devices that interfere with a shark’s ability to detect electric fields emitted by potential prey, are effective in repelling sharks. Traditional shark-resistant suits, often made of heavy chain mail, hinder swimmers’ mobility. The newly developed wetsuit materials seek to optimize safety without sacrificing performance.
Huveneers and his team evaluated four different bite-resistant materials designed to enhance the durability of standard neoprene against the strong jaws of sharks. One variation incorporates small chain mail segments into a conventional neoprene wetsuit, with protective pads shielding key areas like major arteries in the limbs. Other configurations feature Kevlar, a material commonly found in bulletproof vests, or lightweight polyethylene nanofibers, which are strong fibers often used in sailboat rigging.
To study the effectiveness of these materials, the researchers attracted white sharks (Carcharodon carcharias) and tiger sharks (Galeocerdo cuvier) to their vessel using bait balls. These shark species account for the majority of unprovoked attacks in Australian waters. Once the sharks were drawn near, the scientists swapped the bait for bite-resistant materials or standard wetsuit fabric attached to buoy-like “bite packages.”
The tests demonstrated that all four materials significantly minimized severe damage, even after the sharks bit, shook, or pulled the packages underwater. The regular neoprene suits exhibited deep puncture wounds, while the bite-resistant designs showed only shallow imprint marks, resembling the bites of a pet. This groundbreaking innovation has the potential to safeguard beachgoers and ocean enthusiasts from life-threatening blood loss, which is often the leading cause of death during rare shark attacks.
While Huveneers points out these materials can’t prevent crushing injuries and aren’t a universal solution, they should complement existing shark mitigation strategies including public education, technological advancements, and safety protocols at the beach.
