Take your cues for relaxed weekend style from these looks, snapped backstage at Stella McCartney’s Spring 2010 show. Sage green separates in soft silhouettes offer a fresh riff on the tougher military trend. Try picking up three of the season’s smartest essentials: the abstracted floral, the polished short and the long skirt. Basket bags and cork or wooden sandals are in tune with this nature-inspired palette. Notice how each outfit is grounded with a fitted, neatly tucked-in top–a flattering way to highlight shoulders and a nipped waist. You can easily style similar looks with pieces already in your closet. From Friday night drinks to the farmer’s market, we know what we’ll be wearing this weekend.