Women's UA Iso-Chill Launch Wrapback CapOversized back opening so you can wear your hair up in a ponytail or bun Adjustable wrap design so you can put on the hat with your hair already up & in place Wrap back features stretchy fabric & snap closure for a comfortable, secure fit Iso Chill sweatband helps disperse body heat, making it feel cool to the touch Low profile hook & loop closure to avoid hair snagging with elastic layer underneath for added stretch