Airflow
Relaxed fitPerforated sleeves and back. Size down for a closer fit.
UPF 50+
Your eligible bundle savings are calculated in your bag.
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Contact us about sizesEnhance 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
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) |
|---|---|---|---|
| XS | 43 | 31 | 45 |
| S | 45 | 33 | 47 |
| M | 47 | 35 | 49 |
| L | 49 | 37 | 51 |
| XL | 51 | 39 | 52.5 |
Ultra Breathable runs small. Most riders order one size up from their usual size. Fit model wears a size S.
Wash at or below 40 degrees celsius
Do not bleach
Do not tumble dry
Iron at low temperature
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.
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.
Find your fit
Choose the feel you prefer, then check the size guide for your measurements.
Perforated sleeves and back. Size down for a closer fit.
A closer silhouette with stretch for movement.

Cooler rides, polished finish
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
Lightweight sun protection, targeted ventilation and a flattering technical fit for long days outdoors.
Ultra-breathable perforated fabric vents heat during demanding rides.
Technical sun coverage supports long days at the barn, show grounds and beyond.

Moisture-managing fabric helps riders stay dry and polished.
Flexible fabric moves easily with the rider without feeling restrictive.
Add short campaign clips showing ventilation, stretch and rider-focused fit.
Two technical fabrics and fits designed for different riding preferences.
| Ultra Breathable | Airflow | |
|---|---|---|
| Technical performance fabric | Yes | Yes |
| Breathable construction | Yes | Yes |
| UPF 50+ protection | Yes | Yes |
| Antibacterial finish | No | Yes |
| Relaxed technical fit | No | Yes |
| Close-to-body show fit | Yes | No |
Real feedback from the ARMATEQ community.
The fabric feels light and comfortable while still looking put together at the barn.
The fit is flattering, practical and easy to layer for changing weather.
A polished technical shirt I can actually ride in all day.
FAQs
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.
Yes. Open the bundle options, then choose the style, colour and size for each item before adding your completed bundle to your bag.
Perforated technical zones are designed to vent heat, while sweat-wicking four-way stretch supports comfort during warm rides.
ARMATEQ prepays duties and tariffs for eligible Canadian and US orders so there are no surprise charges on delivery.