The Sealskinz Poringland Waterproof Foldable Peak Hiking Cap is a versatile hiking hat designed to enhance your outdoor adventures. Featuring Aquasealz technology, this cap offers reliable waterproof protection while maintaining breathability. Its mesh air vent ensures you stay cool during warm hikes, and the adjustable elastic fastener at the back guarantees a snug fit. The cap's foldable design allows for easy storage in your pocket, and with UV protection of SPF 40+, it is crafted with meticulous attention to detail for all your hiking needs. Provides complete waterproof protection with Aquasealz technology Breathable design with a mesh air vent to keep you cool Adjustable elastic fastener for a secure and comfortable fit Foldable design for convenient storage in your pocket Offers UV protection with SPF 40+ for sun safety Materials Outer: 100% polyester Mid layer: Aquasealz waterproof membrane