Authentic and ORIGINAL 59FIFTY onfield poly fitted hat by New Era, light navy blue deep crown and visor, gray undervisor, embroidered Everett AquaSox Minor League onfield team logo on front, New Era logo on side, matching raised embroidered MiLB Minor League logo on back, These hats are the Authentic Onfield hats worn during Minor League games, they are an affiliated with the Seattle Mariners. This Everett AquaSox baseball cap is made by New Era and is licensed by the MiLB - Minor League Baseball.