Core Run Ultralight Short Sleeve Shirt for Men

The CEP Core Run Ultralight Short Sleeve Shirt for Men is built for maximum breathability and comfort. Its ultra-lightweight, seamless construction prevents chafing and unwanted movement, while strategically placed ventilation zones enhance airflow to keep you cool. The moisture-wicking fabric pulls sweat away for faster evaporation, and the form-fitting design offers a soft, barely-there feel for distraction-free performance on every run.

CLIMATE

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Ventilation Zones: Strategically placed to boost airflow and keep you cool during runs, workouts, and high-intensity training sessions
Moisture-Wicking Fabric: Effectively pulls sweat away for quick evaporation and lasting dryness
Ultra-Light Material: Reduces weight while improving breathability for unrestricted, cool movement during peak athletic performance
Seamless Design: Prevents chafing and irritation, delivering a smooth, second-skin feel for distraction-free workouts
Form-Fitting Cut: Offers an ergonomic fit that moves with your body, providing flexibility, comfort, and optimal performance
Reflective CEP Logo: Enhances visibility in low-light conditions, keeping you safe during night runs, outdoor training, and evening workouts
Soft Hems: Feel smooth against the skin for all-day comfort during active movement
Raglan Sleeves: Provide increased mobility at the shoulder joints, ensuring a full range of motion and improved fit for better performance in sports and fitness

FIT: Slim

SLEEVE TYPE: Raglan

AVG. SLEEVE LENGTH: 15"

LINE: CORE – Made for every runner and every run. CORE is for high-quality essentials designed to meet all conditions from daily training to long-distance challenges. These are the building blocks from which great runs are made.

COLLECTION: CORE RUN ULTRALIGHT – Light on You. Heavy on Performance. Built for warm days and long miles, CORE RUN ULTRALIGHT delivers breathable comfort, flexible movement, and a barely-there feel that keeps you cool and focused through every run. Lightweight, versatile, and built for everyday performance, it’s gear you’ll reach for again and again.

MATERIAL: 90% Recycled Polyamide, 10% Elastane

CARE INSTRUCTIONS: Machine wash 30°C. Do not bleach. Do not tumble dry. Do not iron. Do not dry clean.

Overall rating: 5.0 / 5 from 3 reviews.

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Very comfortable and lightweight for

"Very comfortable and lightweight for hot runs and workouts. I have avoided wearing this on very overgrown trails as the holes may get snagged by a branch but hasnt been an issue yet. Would recommend if you want something very light"

— Logan E. (5/5)

I wish all my shirts were this one

"The CEP Men's Core Run Ultralight shirt is one of those products that just works. From the fit to the ventilation, this should be the baseline for how quality running shirts are made. Pros: - Flattering fit - Good ventilation - Reflective detailing - Flat, minimalist seams - Durable even under a pack - Has longevity that the Pro Run lacks Cons - Expensive - Limited color availability There's not much to be said for a shirt aside from its pros and cons, but I will say that CEP has quickly become my favorite race shirt for multi-day efforts, and the Core Run is my go-to for longer ultramarathons. Few shirts breathe so well, fit so perfectly, and still have the longevity that this shirt has. I've tried the much lighter Pro Run Ultralight from CEP, and while the Pro Run is unquestionably the more "elite" garment, I've found that this one has withstood more punishment, washing, and wearing under packs without showing the visible wear that the Pro Run has. One year into ownership and I'm already considering retiring the Pro Run, but the Core Run looks almost new for a similar amount of use. In summary: I love this shirt and will be buying more. I wish I could have a complete closet of these shirts, but the limited color variety does cause some problems for that."

— Walter H. (5/5)