This past Sunday, Kate Middleton read a bedtime story for CBeebies, the BBC's kids network, but I've been wide awake since then thinking about her outfit. In contrast to the formal collared dress from her last public outing, Middleton wore a Holland Cooper Fair Isle Knit Sweater with light-wash & Other Stories jeans as she sat cross-legged on a bed of blankets. The sweater costs nearly $250 and is sold out on the brand's website, but I scoured Amazon to find seven believable dupes, starting at $16.

Middleton's original sweater is a cream turtleneck with a gray, red, and black fair isle print and gold buttons on the shoulders and the cuffs. Below, you'll find similar turtleneck options, as well as crew necks and tunics, for a fraction of the price.

Shop Kate Middleton-Inspired Fair Isle Sweaters

The closest option on the list to the original sweater is the Madewell Somervell Fair Isle Turtleneck, which is on sale starting at $80. It's made from a blend of acrylic, wool, and polyamide that's combined into a mid-weight knit. The beige sweater has the same high neckline and fair isle print as Middleton's version, just with different colors in the pattern. It's low in stock, so grab the Madewell sweater now if you think it's the one for you.

Shop now: $80–$98 (Originally $110); amazon.com

A more affordable option, the Cable Stitch Fair Isle Sweater achieves a similar look for $40. It comes in four colors, each with a fair isle pattern across the front and a contrasting crew neckline. According to one shopper, the "fabric is amazingly soft with no itchiness at all," while another confirmed that it hasn't "faded, shrunk, or developed any annoying pills" in the wash.

Shop now: $40; amazon.com

If you're looking for the cheapest option on the list, that would be the Anthony Richards Fair Isle Tunic Sweater, which is on sale for as little as $16. The ivory fair isle sweater has a longer hemline, so it's perfect to wear with leggings and Chelsea boots on a cold winter day. Plus, it's made of acrylic, so it's completely machine-washable. As one shopper put it, the sweater is "soft, fuzzy, cozy, warm, and goes great with anything."

Shop now: $16–$20 (Originally $36); amazon.com

To channel your inner duchess this season, check out more fair isle sweaters on Amazon below.

Shop now: $26; amazon.com

Shop now: $29; amazon.com

Shop now: $33; amazon.com

Shop now: $42; amazon.com