Fit & Design: Body is 100% recycled nylon with a DWR (durable water repellent) finish Lightweight, brushed tricot lining is soft against the skin and adds a bit of warmth for winter touring Medium crown with no top button makes for an interference-free fit under a helmet or when worn on its own Soft foam-core brim packs down small and provides sun protection with a dark underbill to reduce glare Buckle has a quick-release to make adjustments easy Additional Details: Made in a Fair Trade Certified(TM) factory Fabrics are certified as bluesign(R) approved Recycled materials Country of Origin: China Brand: Patagonia