Peak Running Flask — 500ml — view 1
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Peak Running Flask

$10

500 ml of soft hydration that collapses as you drink — no slosh, no bulk, just water when you need it.

500 ml·30 g empty·Leakproof
Add $60 to your bag for free delivery
Pairs with this

Add the rest of the range — made to work together on the same run.

Details, fit & care

Hydration that runs with you. Made for the trail, this flexible flask replaces the bulk of a hard bottle with something lighter, quieter and far more forgiving on your stride. It shrinks as you drink, folds away when empty, and slips easily into any vest pocket.

  • 500 ml collapsible soft flask — weighs just 30 g empty
  • Leakproof high-flow bite valve — auto-sealing, no drips
  • Bounce-reducing design that shrinks as you drink
  • BPA-free & PVC-free — clean, pure hydration
  • Durable TPU · dishwasher safe
  • Optimised for the Peak Running Vest, fits most vests universally

Care
Before first use, rinse three times with clean water and dry upside down with the mouthpiece removed. Still notice a taste? Pop the dry flask in the freezer overnight. The mouthpiece detaches for deep cleaning — recommended after every sugary drink.

Zoomed product image
$10
Worn for real

The flask, in action.

Drink on the move, then squash it flat. Real runners, real sips — no renders.

  1. 01500 mlSoft flask that collapses as you drink.
  2. 0230 g emptyNext to nothing in your vest pocket.
  3. 03LeakproofSeals tight, no drips on the run.
01Drink on the move
02Shrinks as you drink
Peak vs. the rest

Built to disappear.
Made to perform.

Select a feature to see the difference.

Peak running vest
✓Peak running vest

Featherlight on the run

Airflow neoprene that melts into your torso.

VS
Traditional running vest
✕Traditional vest

Dead weight from mile one

Heavy fabric drags on every stride.

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A ★★★★★ Customer review