UPF 50+

Women's Heyday Side Split Shirt | White/Navy Stripe

Women's Heyday Side Split Shirt | Fuchsia Bouquet

Women's Heyday Side Split Shirt | Periwinkle Isla Bonita

Women's Heyday Side Split Shirt | Vanilla Bouquet

All Women's Clothing

Women's Heyday Side Split Shirt | White/Navy Stripe

Name: Women's Heyday Side Split Shirt | White/Navy Stripe
Brand: Coolibar
SKU: 01461-930-151-9001
Price: 59.0 USD
Availability: InStock
Rating: 4.6 (686 reviews)

ZnO^TM Fabric

$59

Color: White/Navy Stripe

White/Navy Stripe

Black

Navy

White

Periwinkle Isla Bonita

Fuchsia Bouquet

Vanilla Bouquet NEW

Final Sale - Not eligible for promos or returns

Size: XS

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XXL

XXS

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Free Shipping on $125+ and/or 3+ Items

UPF 50+ Tested & Certified

The Heyday Side Split Shirt is a relaxed fit, slightly elevated tee with a sporty scoop neckline. Soft, breathable, and lightweight, it’s perfect for daily leisure activities like walks, coffee runs, and downtime. Plus, it provides UPF 50+ sun protection to keep you safe while keeping your look effortlessly stylish.

UPF 50+
Relaxed fit
Rounded hemline
Scoop neckline
ZnO™ fabric: Super soft against the skin, lightweight, cool and comfortable, it is made from a unique blend of cotton and bamboo fibers engineered for breathability and everyday ease

Measurements:

Body length: 27" (size medium)

Style: 01461

ZnO™ Fabric

Our premium ZnO™ fabric delivers exceptional softness, lasting comfort, and advanced UPF 50+ sun protection. Infused with mineral-based UV protection, it is made from a unique blend of cotton and bamboo fibers engineered for breathability and everyday ease. It’s gentle on sensitive skin and ideal for all-day wear. Lightweight, smooth, and 4-way stretch, this fabric is made to keep you feeling cool, relaxed, and protected wherever the day takes you. As the world leader in UPF 50+ clothing, we offer apparel that blocks 98% of UVA and UVB rays, combining safety and wellness you can trust.

Composition: 52% Cotton, 43% Viscose from Bamboo, 5% Elastane.

View Full Fabric & Care Instructions

Shipping

Free Shipping: on orders of $125+ and/or 3 or more items.
Free 2-Day Shipping: on orders above $250 to the U.S. and Territories.

Delivery in business days (Mon–Fri, excluding holidays).

Returns

Choose the return option that works for you. All eligible returns are completed through our Return Portal.

Smart Return Protection — $2.98 at checkout: faster, worry-free returns with a $0 handling fee on eligible items. Add it at checkout for free returns on unworn items with original tags within 30 days.
Standard Return: available without Smart Return Protection. A handling fee applies:
- Domestic orders: $7.95 return fee
- International orders: $20.00 return fee (plus applicable tax)

Need more details? See our full policies for shipping times, eligibility, and processing.

Certified
UPF 50+

#1 Sun Protection
Brand Worldwide

Breathable

Lightweight

Overall rating: 4.581022 / 5 from 685 reviews.

AI Generated Review Summary

This shirt offers a soft, breathable, and comfortable fabric with a relaxed fit and sporty scoop neckline. Customers appreciate its longer length, flattering long sleeves, and nice look. The material is praised for its quality and lightweight feel, though opinions on sizing vary.

Summary topics

Fabric Comfort (18%): Based on a significant number of customers, the fabric is soft, breathable, and comfortable.
Length Satisfaction (5%): Customers expressed satisfaction with the longer length of the product, which was mentioned multiple times in the reviews.
Product Feel (4%): Customers loved the feel of the product, describing it as great, comfortable, and soft.
Product Style (10%): Customers loved the style of the product, with multiple reviews expressing admiration for its fit and style.
Sleeve Length (4%): Customers appreciated the long sleeves of this shirt, finding them flattering, perfect, and just right.

Review topics: ["size","color","weight","fit","quality","feels","design","price","skin","looks","style","shirt","material","length","weather","fabric","coverage","neck","comfort","top","protection","customer service","touch","sleeves","shape","stripes","print","cut","coolibar","neckline"].

Review highlights

"Comfortable fit and beautiful color!" — Doylene B.
"This shirt is a great color and a good fit." — Shirley
"I love the fabric, style and fit." — Tiny G.

Reviews

Nice idea, bad quality control

"This top runs extremely large. I’ve ordered tops from Coolibar before and the small fits well. I am 5’6” and 125. Why is this small so much bigger? There is no indication of “relaxed fit” or “loose fit”. It does not match up with the size chart."

— Ginger S. (1/5)

Soft and breathable

"Once again, Coolibar did not disappoint! This tee is soft and comfortable in 90 degrees. It washed beautifully with no shrinkage, fade or shape change. The piping detail takes this casual shirt to the next level."

— Michael Y. (5/5)

Fabulous!!

"Love the ZnO fabric!! Not so thin but still feels light and comfy in our CO dry/hot summer season. It’s hardy and stands up to doing work in the garden, yard, or physical activities. I like the styling, love the side vent seam/hem. I do love the look of the boat neckline but would love to have a style that fits like the heyday - with the same relaxed and roomy torso to hip measurements - but with a crewneck or even mock neck option to better protect from sun. I tried the fisherman and it was too much around the hood etc for me and too fitted. I really like the Dania too for the crew neck but probably prefer the hem and side vents of this top. I miss the thumb holes the Dania has… I’d love to see that on the heyday too. Still I give this top marks for comfort, style, breathability, protection, and hardiness. Love it!!"

— Melissa B. (5/5)

My favorite!

"Perfect weight texture and fit! Bought this twice and and in navy because it’s my go to!"

— Lisa O. (5/5)

I had already bought one

"I had already bought one earlier but loved the color so much I had to get it too"

— Cecilia M. (5/5)

Women's Heyday Shirt

"Nice fit, drape, and style, but the white color is a bit dingy and yellowish."

— Elizabeth R. (4/5)

Way below expectation

"Very thin fabric and too wide on the neck area looks different than the image. I emailed coolibar to ask for a return without charges but no one responded"

— Mai M. (1/5)

Comfortable, washes well

"Really like this shirt, will order it again in another color. X-large. 5’6” 160."

— Terri V. (5/5)

like in the picture

"good material"

— Edina B. (5/5)

Soft and comfortable.

"Very soft and comfortable."

— Marion H. (5/5)