Body and contrast: 4.7-oz 100% recycled nylon ripstop with a durable water repellent (DWR) finish made without intentionally added PFAS. Back panel and shoulder straps: 6.2-oz 100% recycled nylon mesh and 7-oz 100% recycled polyester spacer mesh. Stuff sack: 70-denier 100% recycled nylon ripstop. Made in a Fair Trade Certified™ factory