SPANX® Poplin Oversized Button-Up Shirt – Classic White
- Unit price
- /per
Free shipping on orders over $150
Secure Checkout
A true wardrobe essential, the SPANX® Poplin Oversized Button-Up Shirt in Classic White is the timeless button-down every closet needs. Crafted from premium Supima® cotton with a super-fine yarn count, this lightweight yet durable shirt delivers a polished look with all-day comfort.
The oversized silhouette, high-low shirttail hem, and pleated back detail create an effortlessly chic fit with the perfect amount of coverage. Wear it tucked, untucked, layered, or styled open for endless outfit possibilities.
Why You’ll Love It
- 🤍 Classic white button-up that never goes out of style
- ✨ Premium Supima® cotton feels soft and luxurious
- 👚 Oversized fit creates a comfortable, polished silhouette
- 💼 Perfect for office outfits, travel, and everyday wear
- 🌿 Lightweight fabric makes it ideal for every season
- 🖤 High-low hem adds flattering coverage
- ✨ Easy layering piece for endless outfit combinations
- 👖 Looks amazing with SPANX® pants, Judy Blue jeans, and skirts
Fit & Feel
- Oversized, relaxed fit
- High-low shirttail hem
- Pleated back detail
- Classic button-front design
- Lightweight woven cotton
- Non-stretch fabric
- Layering-friendly
- Available in sizes M–3X
- If between sizes, choose your normal size for the intended oversized fit
Who It’s Great For
This style is especially flattering for:
❤️ Apple Shapes – The relaxed shape and longer hem provide comfortable coverage while creating a clean, elongated silhouette.
🍐 Pear Shapes – The structured neckline and relaxed fit balance proportions beautifully.
⏳ Hourglass Shapes – The soft fabric drapes naturally and can be styled tucked to define your waist.
⬛ Rectangle Shapes – The oversized shape and back pleating create dimension and effortless movement.
🔻 Inverted Triangle Shapes – The relaxed silhouette softens the overall look while maintaining a polished feel.
Remember: These are styling suggestions, not rules. The best outfit is always the one that makes you feel confident. ❤️
Fabric & Care
- 100% Supima® Cotton
Care:
- Machine wash cold
- Gentle cycle
- Wash with like colors
- Tumble dry low
- Remove promptly
- Low iron if needed
- Or dry clean
Styling Ideas
- Pair with jeans and sneakers for elevated everyday style.
- Layer over a graphic tee for a chic casual outfit.
- Wear with trousers for a professional office look.
- Style open as a lightweight layering piece.
- Add statement jewelry and accessories to complete the outfit.
Model Info
Stacey
- Height: 5'4"
- Usual Size: 20, 3x
- Wearing Size: 3x
Why Shop Love Marlow
At Love Marlow, we believe every woman deserves clothing that fits beautifully and feels amazing. Our boutique collection features stylish, comfortable pieces for women in mid and plus sizes 8–28, helping you create outfits that feel confident and effortless.
Looking For More Boutique Tops?
Shop more elevated basics, boutique blouses, workwear styles, and layering pieces designed for everyday confidence.
Size Chart | Measurements
| SIZE | SIZE | BUST | WAIST | HIPS |
|---|---|---|---|---|
| XS | 0-2 | 32-34 | 25-27 | 34-36 |
| S | 4-6 | 34-36 | 27-29 | 36-38 |
| M | 8-10 | 36-38 | 29-31 | 38-40 |
| L | 12-14 | 38-40.5 | 31-33.5 | 40-42.5 |
| XL | 16 | 40.5-43 | 33.5-36 | 42.5-45 |
| 1X | 18-20 | 43-46 | 36-39 | 45-48 |
| 2X | 22-24 | 46-49 | 39-42 | 48-51 |
| 3X | 26 | 49-52 | 42-45 | 51-54 |

We understand that every body is unique, so we’ve provided garment measurements above to help you find your best fit. Please note that measurements are taken from a single piece, and even items in the same size may vary slightly.
Need extra help? Connect with us via chat! We love helping you find styles that fit and flatter at Love Marlow — your Sioux Falls, SD mid-size and plus-size boutique.
Shipping & Pick-Up Information
💗 Free In-Store Pick-Up
Local to Sioux Falls? We’ve got you covered with free in-store pick-up!
Orders are typically ready within a few hours during business hours. If you place your order after hours or on a holiday, it will be ready the next business day.
You’ll receive an email as soon as your order is ready to grab—quick, easy, and hassle-free.
🚚 USPS Ground Advantage
- Estimated transit time: 1–7 business days (excluding holidays)
- Orders typically ship within 1–2 business days
- This is our primary shipping method for items that can’t be shipped by air (HAZMAT restrictions apply)
⚡ USPS Priority Mail
- Estimated transit time: 1–5 business days (excluding holidays)
- Orders typically ship within 1–2 business days
- Shipping rates are calculated at checkout
✨ USPS Priority Mail Express
- Estimated transit time: 1–2 business days (excluding holidays)
- Orders typically ship within 1–2 business days
- Shipping rates are calculated at checkout
📦 Please Note
- Love Marlow ships within the continental United States only
- During free shipping promotions, USPS Ground Advantage will be used
- If another shipping method is selected, it will be adjusted or an additional invoice may be sent for the difference (based on customer preference)
Need to make a return or exchange? We’ve got you covered!
- Exchanges & Store Credit: Items may be exchanged or returned for store credit within 14 days of purchase.
- Requirements: Items must be unwashed & unworn, with tags attached, and you must have your original receipt.
- Final Sale Items: The following cannot be returned or exchanged: Sale items, Swimsuits, Undergarments, Tights, Leggings, Jewelry, Handbags, and Seasonal Items.
- Non-Compliant Returns: Returns that don’t meet our policy may be denied or subject to a fee up to 25% of the original purchase price.
To start your return, [click here].
To view entire return policy, [click here].
Adding product to your cart
Loved by Our Community: Honest Reviews from Women Who Wear It
We also recommend
Judy Blue High Waist Non-Distressed Trouser Flare Jeans in Dark Wash
$89.00
- Unit price
- /per
1 color, 11 sizes
- 7|28
- 9|29
- 11|30
- 13|31
- 15|32
- 14
- 16
- 18
- 20
- 22
- 24
JUDY BLUE HIGH WAIST V-FRONT STRAIGHT LEG IN WASHED BLUE
Regular price
$89.00
$40.00
- Unit price
- /per
1 color, 11 sizes
- 7|28
- 9|29
- 11|30
- 13|31
- 15|32
- 14
- 16
- 18
- 20
- 22
- 24
Judy Blue Mid-Rise Tummy Control Straight Leg Jeans
Regular price
$89.00
$40.00
- Unit price
- /per
1 color, 11 sizes
- 7|28
- 9|29
- 11|30
- 13|31
- 15|32
- 14
- 16
- 18
- 20
- 22
- 24
Judy Blue Mid-Rise Non-Distressed Boyfriend – Light Medium Wash
Regular price
$89.00
$40.00
- Unit price
- /per
1 color, 11 sizes
- 7|28
- 9|29
- 11|30
- 13|31
- 15|32
- 14
- 16
- 18
- 20
- 22
- 24
Judy Blue Mid-Rise Tummy Control Bootcut Trouser Jean
Regular price
$99.00
$40.00
- Unit price
- /per
1 color, 11 sizes
- 7|28
- 9|29
- 11|30
- 13|31
- 15|32
- 14
- 16
- 18
- 20
- 22
- 24
Judy Blue High Waist Tummy Control Straight Leg Jeans – Medium Wash
$89.00
- Unit price
- /per
1 color, 11 sizes
- 7|28
- 9|29
- 11|30
- 13|31
- 15|32
- 14
- 16
- 18
- 20
- 22
- 24
Judy Blue High Waist Rolled Cuff Jogger in Urban Bronze
Regular price
$89.00
$40.00
- Unit price
- /per
1 color, 11 sizes
- 7|28
- 9|29
- 11|30
- 13|31
- 15|32
- 14
- 16
- 18
- 20
- 22
- 24
Judy Blue High Waist Tummy Control Retro Wide Leg Jeans
Regular price
$89.00
from $40.00
- Unit price
- /per
1 color, 11 sizes
- 7|28
- 9|29
- 11|30
- 13|31
- 15|32
- 14
- 16
- 18
- 20
- 22
- 24
Create a Wishlist
Easily save your favorite styles and come back to them anytime — whether you're shopping in-store or online! 💖
---
Share your wishlist with friends and family or let our stylists look it up in-store to help you find the perfect fit. Your fashion faves, all in one place! 🛍️✨
Every product is measured
At Love Marlow, we believe that the perfect fit starts with precision, which is why we carefully measure each style in our collection by hand.
---
In the Size Chart | Measurement Section of each Product Description, you'll find detailed measurements for that specific item, giving you a better understanding of how it will fit your shape.