Savage x Fenty posted the new range on Instagram this week, writing: "To celebrate #NationalUnderwearDay, we're getting saucy with these CROTCHLESS numbers. You heard that right, sis! The new collection is on savagex.com now. #SavageXFenty"
Some fans pre-emptively blamed RiRi for the trouble the underwear might cause: "Omg so y'all finally find out I'm single and now you're trying to get me in trouble smh well Jesus got me," wrote one woman.
"Tryna get somebody pwegnant," wrote another.
Others said they would "love to get some air on hot days" and noted that the design would be a "timesaver" that could prove practical in other more intimate situations.
Crotchless underwear hit the headlines in New Zealand earlier this week, when a man was caught trying to steal a pair from the Lower Hutt branch of Peaches and Cream.
Footage of his failed attempt was posted to Facebook by the store, which has a history of shaming shoplifters online.