With the power to pull every outfit together, Proenza Schouler's covetable 'PS11 Classic' shoulder bag is a favorite with the fashion pack. A versatile day-to-night size, this chic black textured-leather piece combines style with practicality to must-have effect. Let it punctuate a signal-orange coat and printed pants, grounding the look with lace-up ankle boots.

Shown here with: Burberry Prorsum coat, Proenza Schouler top, DANNIJO bangle, Eddie Borgo bracelet, Roland Mouret belt, Proenza Schouler pants, Reed Krakoff shoes.

• Proenza Schouler PS11 Classic shoulder bag: black textured-leather, detachable shoulder strap, double-tab turn-lock grill-fastening tabs with faceted cube embellishment, front flap pocket, back zip-fastening pocket, internal zip-fastening pocket, key ring at base, silver hardware, fully lined. Snap-fastening flap front.