The second hat for our "Minor League Madness Saturday" is the return of the Riverside Pilots on-field cap, now available on HatClub.com... #hatclub #myhatclub #newera #hcexclusive #fitted #milb #neweracap #hatclubexclusive #milbhatclub #hats #fittedhats #fitteds #hatporn #59fifty #caps #riverside #cap #mariners