The A-list actress flaunted her abs while offering a sneak peek at some new items in her athletic clothing line.
"This little bra and boyshort with little tiny hearts all over it," she wrote on Instagram Tuesday. "@Fabletics #SneakPeek #ValentinesDay2016 #Fabletics."
Fabletics is a stylish athletic wear line co-founded by Hudson. There's also a men's line, FL2.
The 36-year-old mother of two stays fit by doing a variety of cardio and yoga.
"It just depends on if I have time to workout and what my mood is," she told Harper's Bazaar earlier this year. "Like sometimes, I'll just want to stretch and do more of a hot yoga-type situation, sometimes I want to sweat it out and do more cardio, spinning. But my go-to's are Brazilian Butt Lifts -- it's just really, really concentrating on your core and your butt -- and Pilates."