Fashion Instagram Is Obsessed With These 7 Affordable Trends

There’s no denying that we editors spend a lot of time on Instagram—scrolling, saving, screenshotting, and taking copious notes on all the coolest items fashion girls have in their homes, their beauty cabinets, and of course, their wardrobes. Yep, we're pretty obsessed with staying on top of the It-items the style set are wearing and loving at any given moment.

While there are certainly plenty of luxury designer pieces to lust over on the 'gram this season—read: Chanel logo tights and the dreamy Prada Cleo bag—today we’re honing in on the buzzing fashion trends that don’t cost a fortune. From backless tops to cozy knit shorts and cool arm warmers, take a peek below as we share some of the biggest trends we’ve been spotting on cool girls all over Instagram that you can score for under-$100.

Arm Warmers


(Image credit: @linhiller)

Arm warmers or bolero sweaters have become an Instagram It-piece—with fashion girls styling the open-front shrug over tank tops and turtlenecks alike. It's the perfect extra layer to keep you warm and on-trend this winter.


(Image credit: @champagnemani)

Matching Knit Sets


(Image credit: @jordanrisa)

You can't scroll Instagram without seeing a fashion girl sporting a cozy-chic knit set. Whether it's a short, pants, or skirt set, it's the most sophisticated take on loungewear right now.


(Image credit: @cassdimicco)

House Shoes


(Image credit: @tylynnnguyen)

From cozy shearling slipper sandals to easy-to-wear clogs, it's all about comfy house shoes right now (a huge trend we also saw all over the S/S 21 runways). We're 100% here for it.


(Image credit: @bubblyaquarius)

Knit Hot Pants


(Image credit: @clairewakeman)

While knit bras are still going strong, the more recent trend making waves on Instagram is knit shorts—the really short kind—which could basically pass for undies. Practical? No. Insta-worthy? Heck, yes! Whether worn as part of a matching set or mismatched with a knit cardi, they're the cutest addition to your at-home ensembles. Best to keep the heaters on.


(Image credit: @honeybelleworld)

Quilted Coats


(Image credit: @_jessicaskye)

Fashion girls love a good quilted moment—whether it's a cool utilitarian jacket liner or duvet style coat—the cushy fabric is all over our feeds.


(Image credit: @sofiamcoelho)

Bare Backs


(Image credit: @discodaydream)

Cool cut-outs are certainly having a moment right now, but it's the backless trend, in particular, that's reigning supreme. Whether it's a basic backless dress or open-back knit with delicate tie details, they're an Insta-moment waiting to happen.


(Image credit: @camillecharriere)

Relaxed Leather Pants


(Image credit: @raeannlangas)

Fashion girls have been stepping out of their sweatpants (now and again) to team up their casual tops with relaxed, loose-fitting faux-leather pants—an instantly cool way to elevate your winter basics.


(Image credit: @shhtephs)

Up next, 31 of the coziest under $100 items on the internet.

Judith Jones
Senior Fashion Market Editor

Judith Jones is the senior fashion market editor at Who What Wear who specializes in shopping content and trend stories with high-affiliate impact. She shares the coolest, most desirable fashion market finds and brands for every budget. Previous to working in fashion, Judith worked as a TV host on the PBS travel show Globe Trekker (airing on Netflix and Amazon Prime) sharing her passion for travel and culture.