Main: 2.7-oz 100% recycled polyester stretch ripstop with a durable water repellent (DWR) finish made without intentionally added PFAS, and 40+ UPF sun protection. Sweatband: 2.3-oz 100% recycled polyester double knit with miDori™ bioSoft for added wicking and softness. Chin strap/brim rope: 5mm 68% nylon/32% spandex low-stretch elastic. Brim: 3mm floating EVA foam. Fabrics are certified as bluesign® approved. Made in a Fair Trade Certified™ factory