W's Zephyrunner Wind Shell

The ultra-packable Zephyrunner is designed to provide indispensable protection for moving quickly across varying and fast-changing conditions. This lightweight water-repellent jacket balances protection breathability and versatility in a nearly weightless layer that stops wind without preventing heat release during high-output efforts.
features
Strategic breathability Back panel venting keeps you comfortable while maintaining wind protection
Better than zeroThe Zephyrunner strikes a perfect balance of wind-breaking breathability with a CFM rating of 16 engineered specifically for running + high-activity output activity
Multi-condition preparednessHyperlight durable nylon shell is water-resistant and wind-blocking for whatever the trail may bring
Ready for anythingStows into chest pocket for easy packability
Secure fitBungee hem and hood toggle allow for an adjustable fit on the fly reducing exposure in windy conditions
Keep it separated2 zip hand pockets and a zip chest pocket stash small essentials close at hand
VisibilitySignature reflective logos for improved visibility in low light
materials + specs

Zephyr100% nylon with PFC-free C0-DWR (durable water repellency)

Weight108g / 3.8oz (W’s Small)
Garment made in Vietnam

CFM is the rating that measures how windproof a fabric is - 0 is totally windproof. With a CFM of 16 the Zephyrunner cuts most wind while staying highly breathable - ideal for running performance.