Fashion is just really fun right now! There are so many trends I’m loving this season, from sporty pieces and feminine details to all things preppy. I’ve always leaned toward a preppy vibe, so seeing argyle, plaid, and rugby-inspired styles everywhere feels right up my alley. I can’t wait to add some argyle to my closet!
Of course, you don’t need an entirely new wardrobe to try a trend. A couple of new pieces can make what you already own feel fresh again. For this week’s Amazon roundup, I found three fall fashion trends under $40 that are easy to mix into your existing wardrobe: preppy patterns, sporty chic styles, and pretty feminine details.
Pretty Details
This one might be my favorite! I’ve always loved a preppy look, so I’m thrilled to see argyle, plaid, and checks having such a moment. Argyle sweaters are at the top of my wish list, but plaid pants, skirts, jackets, and accessories are easy ways to get the look too. These classic patterns also work beautifully with pieces you probably already have, like solid sweaters, trousers, denim, and loafers. It’s a trend that feels fresh right now but isn’t going to look dated next year.

- Burgundy top
- Navy cardigan
- Butter yellow bow cardigan
- Satin shorts
- Rust orange pants
- Brown skirt
- Broaches
- Lace dress
Sporty Chic
Sporty pieces aren’t just for the gym anymore! Rugby shirts, track pants, retro sneakers, and striped details are showing up everywhere, and I love the relaxed vibe they bring to an outfit. The trick is mixing them with pieces that feel a little more polished. Try track pants with a sweater or blazer, or pair a rugby shirt with trousers instead of leggings. Of all these fall fashion trends under $40, this might be the easiest one to work into your everyday wardrobe.

- Leopard pants
- Burgundy pants
- Black pants
- Brown and purple striped top
- Blue striped cropped rugby top
- Pink and red rugby tee
- Gold sneakers
- Burgundy sneakers
Preppy Patterns
On the complete opposite end of the spectrum, feminine details are having a moment too. Lace trim, bows, satin, pretty buttons, brooches, and romantic little touches can make even a simple outfit feel special. And you don’t have to go full-on romantic to try it. A lace-trim cardigan, satin skirt, or vintage-inspired brooch adds just enough interest. I especially love mixing these prettier details with casual pieces like denim or a simple tee so they don’t feel overly sweet.

- Grey sweater
- Navy sweater with argyle sleeves
- Argyle quarter zip
- Cardigan
- Houndstooth mini skirt
- Bomber jacket
- Plaid pants
- Shoulder bag
Fall Fashion Trends Under $40
There is so much variety in fashion right now, and I think that’s what makes it so fun. You can wear an argyle sweater one day, track pants the next, and lace or bows after that. Better yet, you can mix the trends together! A rugby shirt with plaid pants or a lace-trim cardigan with sporty sneakers would be such a fun combination.
I’m also trying something a little different with the graphics in this post. I’ve been experimenting with AI to create some of the collages because I like being able to show the clothing on its own rather than on the models in the original product photos. I’d really love your feedback! Do you prefer my usual collages using the original product images, the AI versions, or are you just here for the finds and don’t really care either way? Let me know in the comments because I’m genuinely curious!
In the meantime, I hope these fall fashion trends under $40 give you a little inspiration to have some fun with your closet this season. I already know argyle is calling my name!
