The new, Roll Up cuff Heat Holders Worxx 4.7 Tog Hat is exceptionally thermally effective, with a new HeatWeaver plush insulating liner that has been developed to hold even more heat in. Worxx hats are available in high-visibility colors and have reflective stripes for safety. The soft fur-like lining feels great against the skin (this is one time it almost pays to be bald!) and it's also very efficient at using the heat that naturally rises from your head to keep you warmer for longer. Features: Outer: 11% Polyester 89% Acrylic, Lining: 100% Polyester 1 Pack HeatWeaver plush lining Fine rib construction Advanced insulating yarn Machine washable at 40\xB0 Imported Size: One Size to Fits all - Approximately 8.5" High, 9.25" Wide Heat Holders Worxx Thermal Hat