Harrier Tee

How to measure your chest:
Wrap a measuring tape around the chest (at approx 1” below the arm pits); the tape should be against the skin without digging into the skin.

XSSMLXLXXL

Chest Circumference32"-3435-37"38-40"41-43"44-46"47-49"

Merino, Maximized

We launched our Harrier tops in 2014 and they quickly became a year-round staple for runners. Even so, after a decade of wear, we decided it was time for an upgrade. Touting the classic comfort of your everyday, basic tee but with top-notch materials and state-of-the-art technology, the natural properties of the Merino alone make them odor-resistant, run after run, without washing. We supercharged the Harrier Tee with 37.5® Technology - an innovative treatment that keeps you cool by discarding heat while it's still in vapor form. If it sounds a bit like magic, it is. We've struck natural performance gold.

Featuring a high crew neckline and raglan sleeves
Crafted for year-round use with top-notch performance materials
Constructed with upgraded seams that prioritize durability
Made in a natural-fiber blend and powered by 37.5® Technology

Body Fabric: 48% Merino Wool / 39% 37.5® Nylon / 13% Nylon
Odor-resistant, even if you skip laundry day
37.5® Technology for optimal temperature regulation
Machine wash cold on delicate cycle with like colors. Do not bleach. Do not use softeners. Lay flat to dry.

With a relaxed fit through the torso, a modest neckline, and short sleeves, the top touts the classic comfort of a basic tee.

Ruben is 6' 1" and wearing a Medium.

Ruben is 6' 1" and wearing a Medium.

Key Features

No Sweat

Made from an even lighter Merino wool blend and upgraded with 37.5® Technology, it’s not only odor-resistant like our previous version, but it now regulates temperature more efficiently, making it the zenith of natural performance fabrics.

37.5® Technology

With the 37.5® Technology, the blend stays cool by keeping moisture at bay so your body can comfortably maintain an ideal temperature. Infused with mineral-based volcanic material, it speeds up evaporation to remove heat and moisture from the body before it even turns to liquid sweat.

Make Your Move

With an easy fit and raglan sleeves, the Harrier Tee allows for unencumbered movement. The comfortable cut is built to withstand the wear and tear of activity with enhanced seams that are more durable and fabric that’s more resistant to pilling and pulling.

Reviews for the Harrier Tee

"Most of us think of wool as a warmth provider, but it’s actually a temperature stabilizer, with fibers that spread and release heat when it’s toasty, but maintain your temperature when it’s cool. The Harrier [top] from Tracksmith is the best I’ve found.”

— The Strategist

"Best Wool Shirts for Runners"

— Gear Patrol

"The Harrier Tee is the most useful of all t-shirts, all because of its Merino wool properties"

— Belive in the Run

“This shirt can truly do it all, it is perfect for the daily run or a strength session at the gym all while looking good for getting coffee in the morning. Will be purchasing more colors soon.”

— Jose, Customer

“Comfort, style, and functionality blended Perfectly. This is the best running shirt I've ever owned. Is that hyperbole? If you're asking me, no, but I'm the one writing the review. The shirt is comfortable, retains sweat perfectly, and it's become my go-to shirt for summer runs.”

— Tanner, Customer