Bula Sublimation Ponytail Beanie - A light weight micro polyester fabric is used in our sublimation program. The Bula Sublimation Ponytail Beanie features 4-way stretch and is breathable. It keeps you dry when you sweat. The fabric surfaces feature anti-piling and is brushed on the inside for comfort. Whether you are shredding all day, sporting it at the gym or sawing logs, the moisture wicking technology will keep you comfortable no matter what you're up to.