Gwen Stefani hat black jacket stripes white boots riding boots hammer pants pants mother children purse Kingston Rossdale Zuma Rossdale brothers tantrum

Gwen Stefani had her hands full with little Zuma on her hip and a cranky Kingston heading into his karate class Saturday.

But nothing phases the hip mom -- she keeps her head up and her fashion high!

After dropping off the little tykes, the singer-designer showed off her perfectly put together outfit ... can you imagine THIS being your weekend wardrobe?!

Gwen Stefani hat black jacket stripes white boots riding boots hammer pants pants mother children purse Kingston Rossdale Zuma Rossdale brothers tantrum