It's not clear how many sellers there are on Wildberries, but estimates are that it is in the range of 500,000 to 800,000.
Russian fashion designer Viktoria Terekhova says she shipped virtually her entire summer collection of children's clothes last week to the giant warehouse in Elektrostal, east of Moscow.
Within a couple of days, it was destroyed in the Ukrainian drone strike. Terekhova says she lost 12,000 items, amounting to about 45 per cent of her company's total inventory, and another 4,000 items in attacks on Wildberries hubs in southern Russia.
Oleg Kondratyev, co-founder of the clothing brand Airbase that manufactures mostly women's tracksuits, said he had lost about five million roubles ($90,000) of stock in the warehouse attacks.
That has placed him in a dire financial position, he said.
"For today, we cannot pay our loans because sales through Wildberries have stopped. Tax payments are not due yet, but they will be soon, and most likely we will not be able to pay those either," Kondratyev said.