Jessica flaunted her laidback summery style as she hit the Beverly Glen Park in Beverly Hills with her husband and daughters, wearing a layered tank over a midi-dress, flat gladiator sandals, a fringed handbag and adding a splash of colour to her look with red sunglasses.
Meanwhile, over in New York, Heidi went for a stroll with two of her kids wearing a summery combo of skinny strap tank, striped maxi, braided belt and wedges, looking the part of boho-chic mum-on-the-go.
What do you think of Jessica and Heidi's relaxed street style?
Check out Jessica's top 10 style moments below.
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