The Ostro Windproof is made from lightweight Nikwax® Windproof fabric with a PFC-free TX.Direct water-repellent treatment. It cuts strong winds and provides shower protection.

Combined with the Ostro Fleece, it forms a directional clothing system to protect from heavier rain and cold, making it a very flexible option for use across the seasons. It packs into its own stuff pocket to fit easily in your pack.

An adjustable "halo" hood moves without impairing vision and can be secured when not in use. The scooped tail ensures lower back protection for all activities. Subtle reflective flashes provide visibility in low light.

So the Ostro Windproof is a minimalist, lightweight, packable wind-resistant layer, versatile enough to wear year-round for a range of activities.