Men's Performance Short Sleeve Top Black

Find your training sweet spot with our Performance Short Sleeve Top, strategically designed to keep your upper body workouts powerful and effective. Anatomically engineered with O+A’s patented Neuromuscular Performance System featuring targeted shoulder support and sensory nodes around the pectorals, trapezius, deltoids and lats, our Performance Short Sleeve Top provides enhanced upper body stability and awareness. Engaging and improving your posture and form, even during intense workouts, it is engineered to aid stability and performance, no matter your aim or activity.
We aim to ship orders within 1-2 business days (Monday-Friday, excluding holidays). Orders received after 12pm will be processed the following day.

Standard Delivery UK (excluding Channel Island and Northern Ireland) takes 2-4 business days
FREE on orders over £150.
£5.95 on orders below £150.
Next day (on orders received before 12 noon) £8
To the EU, USA & Rest of the World see our delivery and shipping policy page.

You can send your unworn and unused O+A purchase back free of charge within 30 days via our returns portal. For more information visit our refund policy page
We continually evaluate the environmental impact of our product development, manufacturing and supply chains. By exploring new sustainable materials, methodologies and scientific advancements we identify new thinking, better fabrics, components and packaging that are both eco-friendly and functional. For more information visit our sustainability page

Technical FEATURES

A performance wear top that can keep up with your toughest workout sessions. Anatomically engineered to support your upper body through even the most intense training, the Reflex Performance Short Sleeve Top acts as the missing piece to your workout schedule, helping you recover faster and reduce muscle damage. Crafted with our patented Neuromuscular Performance System and flexible skeleton structures to stabilise the shoulder complex, our Long Sleeve Top works to promote a strong dynamic posture and offload strain on the rotator cuff muscles throughout your session.

Constructed with 10 sensory nodes over the pectorals, trapezius, deltoids and lats that interact with the skin as you move, our Performance Short Sleeve Top acts to stimulate tactile mechanoreceptors and amplify afferent feedback to the nervous system. Good form is everything, and our Performance Short Sleeve Top supports efficient muscle activation and aids in keeping good form, even as you fatigue. Enhanced upper body awareness helps you consciously connect with every movement - for the win. 

Performance compression over the chest, back, and core works to limit muscle vibration and ensures you feel stable every time you train. 

Screen-printed silicone around the upper arm cuffs and hem provide a close, comfortable fit, keeping the top secure and held in place, preventing any riding up whatever your sport. This is more than just game-changing - you’ll be able to push yourself harder, lift heavier, and maintain functionality when you need it most. This is game-winning technology. 


With targeted support for the shoulders, and sensory nodes over the pectorals, trapezius, deltoids, and lats, our Performance Short Sleeve Top is designed to help you dominate every workout.


Flexible skeleton structures support the shoulder joints and promote strong dynamic upper body form.


10 sensory nodes interact with the skin to enhance postural awareness and facilitate efficient muscle activation.


Performance compression over the chest and back aids muscle stability and keeps you feeling locked in as you train.


Moisture-wicking fabrics and body-mapped ventilation help control temperature and allow your skin to breathe.

4-way stretch fabrics allow for unrestricted movement while working out.

Engineered moisture management and breathability draws sweat away from your skin to keep you feeling dry.

Nylon Tactel™ has a premium soft feel that is gentle on the skin and dries quickly.

Body-mapped ventilation facilitates moisture wicking, allowing your skin to breathe.

A tight body-hugging fit to provide performance-level compression and minimise muscle vibration.

Silicone cuffs keep the garment and flexible skeleton support in position as you train.

Sensory nodes interact with the skin to maximise proprioceptive feedback and promote efficient movement.

Anatomically positioned flexible skeleton structures support and stabilise the body during movement.

fit and care

1. Pull the top over your head and align the skeleton across your shoulders. Place your arms through each sleeve. DO NOT forcefully pull the garment as this will risk tearing.

2. Align the skeleton to sit centrally over your pectorals and centrally down the outside of each arm over the deltoid muscles, positioning the sensory nodes as per the graphic.

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