Poland Spring® Brand 100% Natural Spring Water, a water from and for the Northeast, is proud to be the Official Bottled Water of the 125th Boston Marathon. The Poland Spring brand has been a true running partner in events from 5Ks to marathons for the past 30 years. The people who bring you Poland Spring Brand Natural Spring Water know the importance of keeping runners hydrated, and are excited to do their part along Boston’s iconic 26.2-mile course. Good luck with your training. The Poland Spring brand will be there with you at the finish line.