Constant comfort is the aim of Tilley's Tec-Wool Hat. They do that by using c_change™ technology which independently reacts to changing temperatures. This is a great 3 seasons Hat! Our Tec-Wool Hat uses c_change™ by Schoeller® Switzerland technology membrane to ensure constant comfort. What is c_change® technology? Much like a pinecone, the c_change™ technology membrane opens when the outside temperature rises, and close again when the temperature drops. Look forward to: - Constant comfort – c_change™ works to maintain an even temperature - Keeping warm – discreet tuck away ear warmers can be pulled down in cool weather - Staying dry – fabric repels both rain & snow Additional Features: - Guaranteed for life - Internal size adjustment device - Hydrofil® sweatband to wick moisture away - Keep valuables safe in the secret pocket - Made in Canada Brim size: Front: 2 5/8"; Back: 2 3/4"; Sides: 2 1/8"Weight: 4.8 oz / 136 gFabric: Black: 71% wool; 18% polyester; 12% polyurethane; Grey/black herringbone & Blue/black herringbone: 88% wool;12% polyurethaneCare: Dry Clean Only
