The SPARTAN by Weis Simer Hydration Vest was designed by a team of athletes, adventurers and long distance runners who understand that details can make or break a race, a workout or a long run.  This vest was designed to withstand the toughest conditions while maximizing comfort, hydration and performance. 

***The Weis Soft Flask shown in pictures is sold separately.  The flask is not included with the purchase of this item.