Credit: Fame Pictures

Baby Bingham's mom is still a babe!

Kate Hudson gave birth to her second son, Bingham "Bing" Hawn Bellamy, just two weekends ago -- and she's ready for the great outdoors again!

Hudson, 32, wasn't afraid to offer a glimpse of her post-baby figure during a Monday outing in Malibu with fiance Matt Bellamy and Ryder, her 7-year-old son with ex Chris Robinson. Shopping for supplies (including a new kite for Ryder!), the Something Borrowed actress beamed in shades, jacket, shorts and flip-flops.

It was actually the second post-baby outing for Hudson, who wore a super-flowy dress during a lunch date with Bellamy, 33, and Ryder on Friday.

Little Bingham (who weighed 7 lbs. 12 oz. when he was born July 9) hasn't yet made his public debut. He takes his unusual first name from his maternal grandmother (it's the maiden name of Bellamy's mom), plus Kurt Russell's late father, Bing Russell. (As longtime partner to Hudson's mom Goldie Hawn, Russell, 60, is Hudson's de-facto stepfather.)