Authentic and ORIGINAL 59FIFTY fitted 100% performance polyester hat by New Era, team color crown and visor with the new high tech fabric that is Water Repellent and is shrink resistant, black undervisor to reduce glare, matching DOGEAR flaps with team color sherpa lining, raised embroidered team logo on front, matching embroidered team logo on back when DOGEAR flaps are up or down. These are authentic Boston Celtics hats made by New Era for official NBA National Basketball Association teams.