Peek-a-boo! The 6th hat for our "Minor League Madness Saturday" is the Las Vegas 51's Hat Club Custom cap, now available on HatClub.com... #hatclub #myhatclub #newera #hcexclusive #caps #fittedhats #59fifty #teamfitted #hat #milbhatclub #neweracap #hatclubexclusive #hats #lasvegas #vegas #lasvegas51s