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Ultra Breathable Mock Neck Long Sleeve Shirt

UPF 50+

ColorWhite/Black
SizeSelect a sizeSize guide

A closer fit. Check the size guide for your measurements. Read rider fit feedback

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Product details

Enhance your sports wardrobe with our Ultra Breathable Mock Neck Long Sleeve Shirt, designed for performance and style across a variety of activities. Crafted from an ultra-lightweight blend of spandex and nylon, this top offers unmatched comfort and flexibility. Whether you're riding, swinging a racket, or teeing off, this shirt is your ideal companion.

Key Features:

Premium Fabric: Made from a high-quality blend of spandex and nylon, this shirt provides exceptional softness, stretch, and breathability. The lightweight material ensures you stay comfortable and cool during any activity.
Asymmetrical Design: The unique asymmetrical mock neck design adds a modern, stylish twist to your wardrobe. Stand out with this chic yet functional top that's perfect for equestrian sports, tennis, pickleball, and golf.
Moisture-Wicking: Stay dry and comfortable with the shirt's excellent moisture-wicking properties. Ideal for intense matches, long rides, or a day on the golf course, this shirt keeps sweat at bay.
Reflective "A" Logo: The reflective "A" logo on the back enhances visibility in low-light conditions, ensuring your safety during early morning rides or late evening practice sessions.
Versatile Long Sleeves: The long sleeves provide additional coverage without trapping heat, making this shirt suitable for various weather conditions. The back, arms and lower stomach areas are constructed with a micro mesh to provide added breathability. Layer it under a sweater or wear it on its own for a sleek, streamlined look.

Why Choose This Top?

Designed for athletes and sports enthusiasts, our Asymmetrical Mock Neck Long Sleeve Shirt combines innovative design with practical features. The lightweight spandex and nylon blend ensures maximum comfort and mobility, while the asymmetrical design adds a touch of elegance. The reflective "A" logo not only boosts your style but also enhances safety in low-light environments.

Elevate Your Sports Performance

Transform your sports wardrobe with our Asymmetrical Mock Neck Long Sleeve Shirt. Perfect for equestrian sports, tennis, pickleball, golf, and more, this shirt delivers on both style and functionality. Shop now and experience the perfect blend of comfort, performance, and modern design!

Fit

Both models are shown wearing a size Extra Small. This top follows the same size chart as our show shirts with an added 2 cm of length to the arms. See size chart at the bottom of the page here. 

Care

Wash at or below 40 degrees celsius

Do not bleach

Do not tumble dry

Iron at low temperature

87% Nylon 13% Spandex

Fit & measurements

Designed for a flattering, close-to-body technical fit. If you are between sizes, size up. Open the size chart below to compare measurements before ordering.

Ultra Breathable size chart

Every number is the garment measured laid flat, in centimetres (half measurements). Lay a shirt you already like flat and measure straight across to compare.

Size Bust (½) Waist (½) Hip (½)
XS433145
S453347
M473549
L493751
XL513952.5

Ultra Breathable runs small. Most riders order one size up from their usual size. Fit model wears a size S.

Fabric & care

Wash at or below 40 degrees celsius

Do not bleach

Do not tumble dry

Iron at low temperature

Shipping & returns

In-stock orders are prepared within 1–3 business days. Shipping rates and delivery options are shown at checkout. Duties and tariffs are prepaid for eligible Canadian and US orders.

View shipping policy

Eligible items can be returned within 30 days of delivery. Items must be unworn, undamaged and have their original tags. Reduced-price items are final sale.

View returns policy

Ultra Breathable Mock Neck Long Sleeve Shirt – UPF 50+ - ARMATEQ

Size guide

Ultra Breathable size chart

Every number is the garment measured laid flat, in centimetres (half measurements). Lay a shirt you already like flat and measure straight across to compare.

Size Bust (½) Waist (½) Hip (½)
XS433145
S453347
M473549
L493751
XL513952.5

Ultra Breathable runs small. Most riders order one size up from their usual size. Fit model wears a size S.

Find your fit

Airflow or Ultra Breathable?

Choose the feel you prefer, then check the size guide for your measurements.

Airflow

Relaxed fit

Perforated sleeves and back. Size down for a closer fit.

Shop Airflow
Ultra Breathable Mock Neck Long Sleeve Shirt – UPF 50+ - ARMATEQ

Cooler rides, polished finish

Technical breathability without sacrificing style

Perforated fabric releases heat where riders need it most, while buttery-soft four-way stretch and sweat-wicking performance support comfort from schooling to show day.

Trusted by riders across North America

Why riders choose Ultra Breathable

Lightweight sun protection, targeted ventilation and a flattering technical fit for long days outdoors.

Targeted ventilation

Ultra-breathable perforated fabric vents heat during demanding rides.

UPF 50+ protection

Technical sun coverage supports long days at the barn, show grounds and beyond.

Sweat-wicking performance

Moisture-managing fabric helps riders stay dry and polished.

Buttery-soft four-way stretch

Flexible fabric moves easily with the rider without feeling restrictive.

See Ultra Breathable in motion

Add short campaign clips showing ventilation, stretch and rider-focused fit.

Perforated breathability
Four-way stretch
Polished from barn to ring

Ultra Breathable vs Airflow

Two technical fabrics and fits designed for different riding preferences.

Ultra Breathable vs Airflow
Ultra BreathableAirflow
Technical performance fabricYesYes
Breathable constructionYesYes
UPF 50+ protectionYesYes
Antibacterial finishNoYes
Relaxed technical fitNoYes
Close-to-body show fitYesNo

Loved by riders

Real feedback from the ARMATEQ community.

The fabric feels light and comfortable while still looking put together at the barn.
Verified customerNyah M.
The fit is flattering, practical and easy to layer for changing weather.
Verified customerCate P.
A polished technical shirt I can actually ride in all day.
Verified customerLeah H.

FAQs

Common questions

What size should I order?

Choose your usual size for a close-to-body fit. If you are between sizes, size up and review the size chart in the fit accordion above.

Can I mix colours and sizes in a bundle?

Yes. Open the bundle options, then choose the style, colour and size for each item before adding your completed bundle to your bag.

How breathable is the fabric?

Perforated technical zones are designed to vent heat, while sweat-wicking four-way stretch supports comfort during warm rides.

Will I pay duties or tariffs?

ARMATEQ prepays duties and tariffs for eligible Canadian and US orders so there are no surprise charges on delivery.

Customer Reviews

Overall rating: 5.0 / 5 from 17 reviews.

Customer photo review of ULTRA BREATHABLE MOCK NECK LONG SLEEVE

The most flattering, breathable and cute riding shirt I own. Hands down the best fit ever and the fabric is just so soft and comfortable. A must!

ULTRA BREATHABLE MOCK NECK LONG SLEEVE

Store owner replied: We're so happy the mock neck is a favourite, Samantha! Thank you for sharing how much you enjoy the flattering fit and soft, breathable fabric.

Customer video review of ULTRA BREATHABLE MOCK NECK LONG SLEEVE

Super light weight, great for Florida heat

ULTRA BREATHABLE MOCK NECK LONG SLEEVE

Store owner replied: Thank you, Brooklyn! We're glad the mock neck's lightweight feel works well for hot-weather rides.

It is a really comfortable and nice fitted shirt that I really enjoy.

Ultra Breathable Mock Neck Long Sleeve Shirt – UPF 50+

Store owner replied: Thank you, Ally! We're happy the long-sleeve mock neck gives you a comfortable, fitted feel. It's lovely to hear you're enjoying it!

Very nice UV long sleeve shirt. Very comfortable to wear. I was a little concerned that my size was an XL because I’m usually a medium but the XL fit nicely. I am 5 foot five and 135 pounds. it’s nice and light enough that I’m considering one of the show shirts.

Ultra Breathable Mock Neck Long Sleeve Shirt – UPF 50+

Store owner replied: Hey Tracy! Yes, the Ultra Breathable shirts are all designed fitted so we do recommend customers to size up depending on their desired fit. Our Airflow line was designed to be slightly roomier if your looking for a different fit. So glad you're liking it so far! Thank you for the review!

the fabric is super light!

ULTRA BREATHABLE MOCK NECK LONG SLEEVE

Store owner replied: Thanks, Kaylee! We're glad you're enjoying the super-light feel of your mock neck's fabric.

Great fit and sleeves are long enough!

ULTRA BREATHABLE MOCK NECK LONG SLEEVE

Store owner replied: Thank you, Cheryl! We're happy the mock neck fits well and that the sleeves are long enough for you.

Love this top! Great fabric, super comfy and lightweight for hot weather climates.

ULTRA BREATHABLE MOCK NECK LONG SLEEVE

Store owner replied: Thanks, Morgan! We're delighted the mock neck's lightweight fabric is keeping you comfortable in the heat.

Absolutely love this shirt! I want two, in every colour!!!

ULTRA BREATHABLE MOCK NECK LONG SLEEVE

Store owner replied: We love your enthusiasm! Thank you both for the kind words about the Ultra Breathable Mock Neck. We're thrilled it's a favourite.

So good for everyday. Shipping was very fast to my house in Florida

ULTRA BREATHABLE MOCK NECK LONG SLEEVE

Store owner replied: Thanks, Catherine! We're happy the mock neck is working well for everyday wear and that your order arrived quickly.

Such nice quality and fits very true to size!!

ULTRA BREATHABLE MOCK NECK LONG SLEEVE

Store owner replied: Thanks, Madeline! We're happy you're pleased with the mock neck's quality and true-to-size fit.

This is the most comfortable riding top ever! And it is so stylish and flattering. I love it!

ULTRA BREATHABLE MOCK NECK LONG SLEEVE

Store owner replied: Thanks, Cortney! We're delighted the mock neck is such a comfortable riding favourite and that you love its flattering style.

💕

ULTRA BREATHABLE MOCK NECK LONG SLEEVE

Store owner replied: Thank you for the love, Tamara! We're glad to see your support for the Ultra Breathable Mock Neck. 💕

I bought this top in white and I love it. I have gotten lots of compliments on it. it's the same material as the show shirts which I've previously purchased so it's super lightweight. It is the perfect shirt for schooling in the summer when you want a bit of extra coverage. I will be purchasing the black soon!

ULTRA BREATHABLE MOCK NECK LONG SLEEVE

Store owner replied: Thanks, Isla! We're happy your white mock neck has been a hit for summer schooling and a little extra coverage. It's great to hear you enjoy the same lightweight feel as your show shirts.

Love this shirt I get so many compliments when I wear it love that it works as a schooling shirt and a show shirt!

ULTRA BREATHABLE MOCK NECK LONG SLEEVE

Store owner replied: Thanks, Paige! We're happy the mock neck is earning compliments and works for both schooling and showing.

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