Welcome to Look of the Day, where we comb through every celebrity outfit from the past 24 hours and feature the single most conversation-worthy ensemble. Love it, leave it, or shop the whole thing below.

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Kate Middleton
Kate Middleton
| Credit: Chris Jackson/Getty Images

The unsung hero of summer fashion is definitely those blister BandAids that accumulate at the bottom of our bags after countless emergency visits to CVS wearing fabulous yet spicy strappy heels. But, as our beloved sandals migrate south for the season and more sensible closed-toed shoes take their place, it's time to give some shine to another underrated wardrobe workhorse: patron saint of cool-weather layering, the turtleneck.

Kate Middleton, giving credit where credit is due, wasn't afraid to put the turtleneck to the task just as fall's page flipped. On a visit to Ulster University this week, Middleton wore a purple Emilia Wickstead suit, Emmy London Josie pumps, a Jaeger Kate Bag, Liv Thurlwell earrings, and a plain black turtleneck. The resulting look was fun, focused, and totally put together.

The thing about a turtleneck is that it goes with almost everything imaginable. Seriously, go ahead and imagine it: a suit, shorts, layered under a maxi dress, a pleated skirt, leather pants, truly and honestly whatever. This super simple garment — which starts at just $10 on Amazon — probably does more than any other piece in your closet.

At the precipice of layering season, the best thing we can do is prepare for our bundled up looks by scooping up bundles of turtlenecks. And with prices as low as these, it's not even a question. Shop the best Amazon Essentials turtlenecks below.

Get the look:

Amazon Essentials Women's Slim-fit Lightweight Long-Sleeve Turtleneck Sweater
Shop now: $10; amazon.com

Amazon Essentials Women's Classic Fit Lightweight Long-Sleeve Turtleneck Sweater
Shop now: $21; amazon.com

Amazon Essentials Women's Classic-Fit Long-Sleeve Turtleneck Top
Shop now: $15; amazon.com

Amazon Essentials Women's Fisherman Cable Turtleneck Sweater
Shop now: $31; amazon.com

Amazon Essentials Women's Lightweight Long-Sleeve Mockneck Sweater (Available in Plus Size)
Shop now: $23; amazon.com