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Session Jacket

Size Guide


Chest 33"
Front Length 24"
Back Length 25"
Sleeve Length 23.25"


Chest 35"
Front Length 24.75"
Back Length 25.75"
Sleeve Length 23.75"


Chest 37"
Front Length 25.5"
Back Length 26.5"
Sleeve Length 24.25"


Chest 39"
Front Length 26.25"
Back Length 27.25"
Sleeve Length 24.75"

All measurements are garment sizing

Push For Progress

We designed the Session Jacket to be one of the most versatile and durable pieces in your training wardrobe, working just as well for warm-ups, long runs and recovery days. A streamlined stretch-knit jacket for shoulder seasons, made from a soft, high-stretch fabric with micro-mesh side panels for breathability. 

Lightweight Stretch-Knit Running Jacket
Bravio Blend Mesh Panels For Breathability
Zippered Side Pockets

Body Fabric - 80% Nylon / 14% Elastane
Mesh Paneling - 85% Polyester / 15% Elastane
Machine Wash Cold
Hang Dry

Lyndsay is 5'7" and wears a size Small. Below, Amy is 5'4" and wears a size Extra-Small.

Versatile By Design

The Session Jacket is designed for variable conditions: lightweight and packable, but with a warmer hand-feel that insulates better than a traditional windbreaker. It also has mesh panels under the arms and down the side panels, allowing for more breathability as temperatures rise. And unlike non-stretch woven fabrics used in other jackets, the Session Jacket has high stretch and recovery for improved range of motion.

Jeanne is 5'5" and wears a size Small.

Italian Masters

We started with our Veloce fabric, a stretch knit made in Northern Italy by the masters of luxury performance textiles. It’s an 86% Nylon, 14% Elastane blend. It may sound complex, but the results are simple. It’s lightweight and durable, silky smooth, and performs under intense activity. It also breathes well, dries quickly, and insulates without risk of overheating – ideal for long runs that start cold and end warm, or warm-ups that start slow and end fast.

Mix & Match

In places where heat tends to rise and moisture accumulates, we used panels of our Bravio mesh - the same ultra-lightweight blend used in our Twilight pieces. It improves temperature regulation and, working together with the Veloce fabric, gives the body and sleeves a more efficient range of motion.

Finer Points

As every runner knows, attention to detail can make all the difference – whether it’s the fabric in our clothes, our preparation for race day, or the small habits that go into better recovery. Our Session Jacket features zipper pockets with room for keys, credit cards, or your iPhone X. Semi-elasticated cuffs allow for easier watch checking.

Road Tested

Jeanne, Lyndsay and Amy tested the Session Jacket over training trips in early fall in the Berkshires and spring in Flagstaff: from the warm-up for some dirt road fartleks to the first miles of the long run.

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