This is a Pearl Izumi warm cap. The product number is 489. Made with brushed-back fabric that covers the ears, so your ears won't get cold even on winter rides. I use the same one, and I think it's a very warm and good product. I have a duplicate from a lucky bag, so I'm offering the unopened one. Black helmet inner cap made of POLARTEC material. - Size: F - Material: POLARTEC Classic Micro - Color: Black Thank you for looking.