Fien | Button-up knit
Fien | Button-up knit
Fien | Button-up knit
Fien | Button-up knit
Fien | Button-up knit
Fien | Button-up knit
Fien | Button-up knit
Fien | Button-up knit

Fien | Button-up knit

Anniversary Sale
$294.95 $69.95 Anniversary Sale!
Free Shipping with UPS
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10% off for 2 items, 15% off for 3 items, 20% off for 4 items
Only left 7 in stock
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ANNIVERSARY SALE UPDATE: Due to high demand during our 8-year anniversary sale, only a limited number of items are left. If you can still click'Add to cart', it’s still available.

Effortless Elegance Meets Everyday Comfort

The Fien Button-Up Knit is a chic essential that blends refined style with relaxed ease. With its classic button-up front and versatile silhouette, it’s the perfect layering piece for adding sophistication to any outfit.

WHY YOU’LL LOVE IT

✓ Button-Up Detailing – A timeless touch that enhances its polished look

✓ Flattering Fit – Designed for comfort while keeping your style sharp

✓ Versatile Layer – Works effortlessly over tops, dresses, or paired with trousers

✓ Everyday Essential – Suitable for workdays, casual outings, or cozy evenings

From morning meetings to weekend gatherings, the Fien Button-Up Knit delivers timeless charm and effortless sophistication.

Size Chart (Inches)

Size Bust Shoulder Sleeve Length
S 35.8 15.8 23.6 26.4
M 38.2 16.1 24 26.8
L 40.9 16.5 24.4 27.2
XL 43.7 16.9 24.8 27.6
XXL 47.2 17.3 25.2 27.9

If you're unsure between sizes, always go one size up. This ensures maximum comfort while maintaining a great fit.

We provide free shipping on all orders within the United States.

All packages are shipped with a tracking number, allowing you to follow your order at any time.

You will receive your tracking details by email within 24–72 hours after placing your order.

If you are not completely satisfied with your purchase, you may return it within 30 days of delivery.

Prior to sending the item back, please contact our customer support team at info@oliveroliviacarter.com and provide the reason for your return so we can assist you efficiently.

For additional details, please refer to our return policy.

Our customer support team is available 24/7 to assist with any questions or concerns you may have. Whether you’re looking for product advice or need help with your order, we’re here to help.

Feel free to reach out to us anytime — we’re always happy to assist.

You can contact us at info@oliveroliviacarter.com

here's what our customers say

★★★★★

The order arrived neatly packaged and looked exactly as expected. The quality feels great and it’s very comfortable to wear. Really happy with my purchase.

Lauren B.
2 days ago
★★★★★

Everything arrived in perfect condition. The fabric feels soft and well-made, and the overall presentation was very nice. A smooth shopping experience.

Hannah P.
2 weeks ago
★★★★

The item arrived safely and was carefully packed. It feels high quality and fits comfortably. You can tell attention was paid to the details.

Rachel S.
1 week ago
★★★★★

I wanted something classic yet stylish, and this store delivered! The pieces are versatile and elegant. Customer service was also super friendly and helpful.

Nancy T.
3 days ago
★★★★

From start to finish, the experience was seamless. Quick responses, fast shipping, and the clothing is absolutely gorgeous. I've already reccomended it to my friends

Sharon E.
2 weeks ago
★★★★★

I was so impressed with how quickly my order arrived and how beautiful the pieces were in person. The fabric feels luxurious and the fit is just right. I'll definitely be ordering again.

Janet H.
8 hours ago
★★★★★

I’m so happy with my order! The items are beautiful and arrived faster than expected. Love it!

Lily B.
1 month ago
★★★★★

Fantastic quality and excellent service. I feel so confident wearing my new pieces totally recommend!

Chloe M.
2 weeks ago

combine and get up to 20% off

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275 products
Meet Oliver & Olivia

Meet Oliver & Olivia, the founders of Oliver & Olivia Carter. United by a deep passion for fashion and a background in Fashion Design and Styling, they decided to turn their experience and vision into something of their own.

Oliver & Olivia Carter stands for quality, new trends, and a personal approach, with one clear goal: putting the customer first and offering a unique style unlike any other.

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Frequently Asked Questions

Today only, enjoy free U.S. shipping on every order. No hidden charges and no unexpected costs at checkout. You’ll see the complete price breakdown before completing your purchase.

Every product page features a comprehensive size guide to help you select the right fit. We suggest comparing the measurements listed to those of a similar item you already have.

If you’re between two sizes, we usually advise choosing the larger size for added comfort. If you’re still uncertain, feel free to reach out to our support team — we’ll gladly assist you in finding the perfect size.

As soon as you complete your order, we immediately get to work preparing it with care. Once it has been shipped, you will receive an email with a tracking link so you can follow your package all the way to your doorstep.

After your order is confirmed, you’ll receive an email containing your order number. To track your package, visit our Order Tracking page and enter either your order number or email address.

Items can be returned within 30 days of receipt.

Return shipping is the responsibility of the customer.

Once approved, refunds will be credited to your original payment method.

For full details, please see our Return Policy.

If you encounter any problems or have questions, please visit our Contact Page to reach our support team. We’re ready to help you quickly and efficiently.

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FREE FAST SHIPPING
We are offering free shipping only today. All orders ship with UPS and include full tracking.
24/7 CUSTOMER SERVICE
If you have any questions, feedback, or concerns about your order, don't worry! Our customer service team is here to assist you.
30-DAY MONEY-BACK GUARANTEE
At Oliver & Olivia Carter, you can shop with peace of mind thanks to our 30-day money-back guarantee. Simply return your items within 30 days.
SECURE PAYMENT
Your payment information is processed securely. We accept American Express, Apple Pay, Google Pay, Mastercard, Shop Pay, and Visa.