Jeans, boots, and flannel each make a strong case for the ultimate fall wardrobe staple -- but Katie Holmes just reminded us why the cardigan beats them all.

The actress was spotted strolling around New York City in a cozy oversized cardigan that would've looked just as appropriate being worn in a Midwestern pumpkin patch. She styled the fuzzy gray sweater casually, unbuttoned over a collared button-up shirt, roomy light blue jeans, and glossy patent leather shoes, with a large woven leather tote on her shoulder.

Holmes is the latest celeb to signal the start of sweater weather. Reese Witherspoon recently stepped out in an unbuttoned oversized brown cardigan in Los Angeles, while we've seen Martha Stewart in a buttoned-up white cardigan and Chrissy Teigen in a more fitted, cropped version of the sweater style that would've fit neatly into Rory Gilmore's closet.

Let's dig into a few of our favorite oversized cardigans inspired by the Dawson's Creek star's autumn street style, with picks from Everlane, Free People, Gap, Target, and more starting under $30.

This cashmere cardigan closely matches Holmes', down to the buttons. It's oversized for a cozy fit but has a smooth, high-quality knit that can be buttoned up for a neat academic look. Quince has it in sizes XS-XL and 1X-3X. Choose from eight colors, with the heather gray looking most like what we saw the actress wearing.

The stitching details on this Amazon option are eye-catching, as chunky knitting throughout the body and sleeves gives way to ribbing at the edges. This cozy-looking cardigan has a roomy fit with large buttons that give it a playful appearance.

It's got more than 1,000 five-star ratings from shoppers, who suggest sizing up if you want the ultra-baggy look Holmes pulls off. "It's so soft and cute, and it looks good with everything," wrote one shopper. "It doesn't feel bulky at all."

If your fall jeans are mostly high-rise, you can't go wrong with the boxy fit of this Everlane cardigan. The organic cotton sweater has a modern ribbed knit, making it a layer you can throw over virtually any outfit. The drop-shoulder cardigan has a relaxed fit, so you'll want to size down for a slimmer fit. "This cardigan is comfy and great for layering over a tank, t-shirt, button-down, or dress," wrote one reviewer. "It's clearly a quality cotton in how it feels and looks."

We've got a few more roomy cardigans inspired by Katie Holmes for you to check out below. No matter which you pick, we have a feeling you'll be reaching for this classic staple well into winter.