With her second child on the way, it would seem that Stella McCartney has ease on her mind. And if her new collection's all-in-ones were a bit too Romper Room, she showed plenty that was viable and in keeping with the season's themes: puff-sleeved sack dresses, tent coats with round collars that perched airily about the shoulders, and double-layer silk frocks in gorgeous kelly greens. She also had her signature slouchy shirtdresses, although these last were awkwardly sewn together between the knees.

The vibe for evening was just as breezy, even a bit Californian—a nod, perhaps, to her Hollywood fans. Short, racer-back tank dresses came covered in studs, while a silk organza trapeze was pin-tucked from waist to hem in gently rolling waves.

But nothing got the pulse racing quite like the show's great-looking, newly proportioned suits. Longer through the jacket but still slim, and with high-waisted, straight-leg pants, they were a sophisticated, yet sexy antidote to the show's otherwise billowing bubble shapes. McCartney earned her recent renown as a women's designer by making clothes to suit not just playtime but all of the complex obligations of modern girls like herself. That's why you'll likely find a lot more of those Savile Row–inflected stunners in the showroom.