Designed for comfort during race or training days, and engineered from our micro-perforated jersey shell to provide increased ventilation and breathability.

-Runntex™ Shell is made in France. It naturally stretches in every direction following the body's movements while staying breathable. It's created using a laser microperforation technique called punch-out, which removes portions of fabric leaving micro-holes. This allows greater breathability and lighter weight while also providing an easy way to attach your number on race day.
- Runntex™ Liner fabric is made in France. Borrowing from medical technology, Runntex™ is highly durable and resilient, but has the feel of silk and an incomparable lightness. The fabric is woven in a grid system which allows greater air flow and unparalleled breathability. Runntex™ is UV resistant and dries astonishingly quickly, preventing bacteria from mixing with your sweat and staying odor free.

- Lightweight 5” Runntex™ shell (cooling, fast dry, moisture control, odor control, 4-way stretch) perforated micro jersey. Fabric from Italy.
- Anti-chafe Runntex™ brief liner (silky soft, fast dry, moisture control, odor control, 4-way stretch) technical silk. Fabric from France.
- Integrated sweatproof phone pocket in the Runntex™ brief liner holds up to an iPhone 15 Pro Max (without a case).
- Zippered sweatproof back pocket for small cargo.
- Double waistband construction to tuck drawcords in and avoid chafing.
- Anti-chafe bonded seam construction.
- Mini S-Carabiner to clip in valuables.
- Exterior detachable care label so nothing rubs against your skin.

All our products come with a 1 year manufacturing warranty from the date of purchase. This guarantee includes faults in the fabric, workmanship and other manufacturing related errors. The warranty does not cover defects caused by normal wear and tear. Our warranty covers products purchased through satisfyrunning.com and authorized retail partners. If you have a warranty claim, please contact us here.