Swiss-engineered and made from premium Japanese fabrics that balance function with perfect form, the On Running Weather Vest offers lightweight protection when you can't rely on the weather. The high-performance polyamide construction is enhanced with ripstop fabric for durability and an advanced DWR (durable water-repellent) coating on the front keeps you dry if you get caught in a shower. A stand-up collar provides additional coverage while a breathable back panel allows air to circulate and regulate your temperature. Designed with waterproof zip pockets at the chest and lower back to keep your valuables safe and finished with reflective detailing to keep you visible in low light. Care Instructions Machine wash cold, iron on low. Do not tumble dry or bleach.