SportFlask- fishing, skiing and carrying flask- 16oz Military pilot issue LARGE CAPACITY-16oz. Great for any liquid. Quality made in the USA. LIGHTWEIGHT/STRONG/BPA FREE- less than 3oz empty, will not break if dropped! EASY TO HIDE/CARRY-Conforms to body- perfect for carrying anywhere- concerts, cruises, games! PERFECT for outdoor activities- fishing, skiing, hiking. Easy to carry! MILITARY ISSUE- the same flask fighter pilots use! Compatible with Mini Water Filter Systems.