"For a cool, dry run—and a dapper look—Tracksmith’s Strata Tee is a top performer."




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Strata Tee

Size Guide


Chest 38"
Length 27"
Sleeve Length 8.5"


Chest 40.5"
Length 27.5"
Sleeve Length 9"


Chest 43"
Length 28"
Sleeve Length 9.5"


Chest 45.5"
Length 28.75"
Sleeve Length 10"

All measurements are garment sizing


Soggy shorts, clingy shirts, and punishing humidity. Each mile hotter than the last. When you’re deep in a midsummer training program, the heat can be relentless—even if you hit the road for a long run just after sunrise. We wanted a top that’s light and airy without feeling scratchy and synthetic. Enter the Strata, our most technical training tee yet.

coldblack® technology with UV protection
active>silver™ finish for controlling bacteria and odor management

80% Nylon / 20% Elastane

Wash Warm With Like Colors 
Do Not Bleach
To Preserve Fabric Finish Recommended Hang Dry 


The freedom of running long, empty roads in the middle of the summer comes with a tradeoff: exposure. And when the sun pounds down you need something to keep you cool. The Strata's unique knit keeps things light and breathable: alternating bands of material combine a closer knit for structure and a more open knit for improved airflow. The Tee is finished with Schoeller coldblack® technology to deliver UV protection and minimize heat absorption. Lightweight and silky-soft, Strata lets you transition from mid-summer base building to peak fall marathon training.


In 1868, Rudolph Schoeller moved to Switzerland to open the country’s first worsted-yarn mill. A century-and-a-half later, Schoeller Textil remains the gold standard in performance fabrics. They’ve adapted to the times and have always been one step ahead of what athletes need, which is why we picked two of their proprietary technologies for the Strata: coldblack®, which reduces heat absorption and provides UV protection, and active>silver™, an anti-microbial finish that regulates and reduces odor.

Jason is 5'7" and wears a size small.


Jason Ayr tested the Strata Tee during a humid California workout before The Speed Project, a 340-mile relay race from Santa Monica to Las Vegas. The session of 10 x 2 minutes did double duty: waking up the legs for the relay, while also putting in some work for the Boston Marathon, where he placed 22nd overall.

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