Patagonia - GPIW Biner Interstate Hat
The Patagonia GPIW Biner Interstate Hat is our homage to the tool that's kept us hanging in there since 1973. The hat features our highest crown with a broad, seamless polyester foam front and cord at bottom front panel. 5-panel design has a mesh-polyester back to circulate airflow. The flat brim is made of 100% organic cotton canvas, with a moisture-wicking COOLMAX headband to keep you comfortable and dry. Adjustable tabs in back secure the fit.