| RefrigiWear ChillBreaker™ Cap | Multicolor | Ragg Wool/Acrylic. RefrigiWear Get your head in the game and stop worrying about protection. The ChillBreaker® Cap offers warmth and safety, so you can focus on what matters: getting the job done, no matter what. Stay warm and prepared for every challenge you face with ChillBreaker® Collection. 100% Acrylic knit Reflective yarn woven into cap for added safety RefrigiWear ChillBreaker™ Cap | Multicolor | Ragg Wool/Acrylic... - RefrigiWear ChillBreaker™ Cap | Multicolor | Ragg Wool/Acrylic. |