The burkini has sparked huge controversy in France, with bans in 15 towns in the country's southeast amid high tensions following a string of deadly jihadist attacks.
But Australian-Lebanese Aheda Zanetti, who claims the trademark on the name burkini and burqini and created her first swimwear for Muslim women more than a decade ago, said the furore in France has attracted more publicity for her products.
"It's just been so hectic," she told AFP.
Zanetti did not have sales figures for the rest of the past week but said she had also received numerous messages of support -- and only one disparaging email -- since the French bans.
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They include messages from cancer survivors and other swimmers who use her light-weight, quick-drying two-piece garments as protection from the sun.
There are other Islamic swimsuits but Zanetti has said her designs are the first to be streamlined into two-piece swimwear with a head covering.
"The support I'm getting is somehow about empowering women... I feel like I've been a counsellor. It's a cry of need that they want to have this enjoyment.
"Women are standing together on this. It doesn't matter what race or religion."
She said the one critical email questioned why Zanetti wanted to cover up women in France, noting "we prefer our women to be naked".
While there are divisions over the burkini in France, Canada's Prime Minister Justin Trudeau on Monday dismissed the idea of a ban in his country, saying Canadians should rise above the controversy as he called for the respect of individual rights and choices.