A "wired" bikini that warns bathers of too much UV exposure via their smartphones could consign sunburn to history, its French makers claim.
In what is said to be a world first, a tiny sensor is attached to the fabric of women's one or two-piece swimsuits and tells users when they are about to burn "depending on their skin type".
The technology will advise women on when to move into the shade or apply more sunscreen. The alerts are sent to a user's smartphone or, in a "Valentines" version, to a partner so he or she can apply sun cream. The swimming costumes cost €150-200 (NZ$200-$320).
"The project came from an off-the-cuff remark after seeing people looking like lobsters still in the sun," said Marie Spinali, head of Spinali Design in Mulhouse, eastern France.
A beach towel variant is also on offer, and a children's version is being developed, complete with GPS alert to warn parents if their son or daughter wanders off the beach.