Hydrapak HYD2STO1V2 Unisex Adult Stow Bottle, 500 ml, Sultro Green, 1 Litre

80% lighter than a rigid canister Clean design and durable design allows for storage where rigid cans don't fit Compact to the extreme when empty: folded, rolled and held in its soft handle Silicone teat with a lid that easily swings for drinking or protecting the dummy from dust. Fits most 28mm threaded water filters to be used in all your adventures