Katie Holmes garnered attention while walking the streets of San Diego on 27/3. She wore a boho chic outfit, featuring a thin cotton milkmaid-style top, wide-leg jeans, and suede ballet flats. *the360mag*

In February, she stepped out in a country-inspired ensemble. The actress paired a cotton midi skirt with a vibrant t-shirt and a headscarf. *Backgrid*

Vogue noted that Katie Holmes' street style exemplifies how simple outfits can still be impactful. Her prominence stems not from oversized, elaborate pieces, but from a carefully calculated formula of form, proportion, and material. *GC Images*

Katie often utilizes basic items such as white shirts, cotton t-shirts, oversized blazers, straight-leg jeans, or high-waisted trousers. However, she wears them with a relaxed, unconventional flair. A thin cardigan might be loosely buttoned with wide jeans, a trench coat paired with activewear, or a mesh top casually tucked into a suit. This approach creates a balance between polished and comfortable, making the overall look dynamic without relying on bright colors. *GC Images*

The actress applies the rule of wearing all-black, creating a slimming effect. *Backgrid*

For denim, she selects basic designs that are slightly fitted and figure-flattering. *GC Images*

Her wardrobe color palette focuses on white, beige, black, navy, and light blue. *Backgrid*

The strongest aspect of Katie's styling formula is proportion. She often chooses an oversized fit for one item while keeping the rest streamlined: a wide blazer with straight trousers, a loose sweater with a straight skirt, or wide trousers paired with a fitted top. *Backgrid*

For an appearance that was both elegant and approachable, she chose cargo pants matching a trench coat, wearing a deep-cut black bodysuit underneath. Katie completed the look with high-heeled sandals and a brown bag. *GC Images*

Katie Holmes has frequently incorporated 2000s-style cargo pants, pairing them with silk blouses or shirts. *GC Images*