500ml: Part of our ultra-light series, the 500ml is so light, you might forget you brought it. Weighing in at just over an ounce, it’s optimal hydration, no matter what kind of runner you are. Its pliable material conforms to most pockets, it shrinks as you drink to minimise water movement and it can be used with or without the tube. Ultra light weight, ultra useful.
600ml: Go big. The largest of our ultra-light series, the UltraFlask 600ml holds more so you can go the distance. Its soft material allows it to fit snugly in most vest pockets and it shrinks as you drink to minimise water movement.
500ml: Part of our ultra-light series, the 500ml is so light, you might forget you brought it. Weighing in at just over an ounce, it’s optimal hydration, no matter what kind of runner you are. Its pliable material conforms to most pockets, it shrinks as you drink to minimise water movement and it can be used with or without the tube. Ultra light weight, ultra useful.
600ml: Go big. The largest of our ultra-light series, the UltraFlask 600ml holds more so you can go the distance. Its soft material allows it to fit snugly in most vest pockets and it shrinks as you drink to minimise water movement.