50x50 Summer Challenge by UnderArmour - Walk, Run, or Cycle 50 days x 50 minutes of activity for families and sports enthusiasts. Join HejazUltra 50x50 Summer Challenge by UnderArmour: Walk, Run, or Cycle!Every day, from 14 June, for 50 days, until August 2nd, Hejaz Ultra is inviting everyone to walk or run or cycle, for […]