Bladders, Bottles & Flasks

Running Water Bottles, Soft Flasks & Hydration Bladders

Hydrate smarter, run stronger. Nathan’s running water bottles, soft flasks, and hydration bladders are designed for fast, efficient hydration on the move. Whether you're carrying handheld bottles, refilling flasks mid-run, or using a bladder in your vest, every system is built for easy access, reliable flow, and performance that keeps up with your pace.

Choose Your Hydration System

  • Handheld Water Bottles: Ergonomic, grip-free designs with easy-sip valves for quick hydration on short to mid-distance runs.
  • Soft Flasks: Lightweight, flexible hydration that shrinks as you drink and packs away easily in vests, belts, or pockets.
  • Hydration Bladders: High-capacity systems designed for use with hydration vests and packs, delivering continuous hydration for long runs and trail efforts.
  • Replacement Bottles & Accessories: Swap, upgrade, or customize your hydration setup with compatible bottles, valves, and components.

Hydration Tech That Works

High-flow bite valves, leak-resistant caps, and BPA-free materials ensure fast, reliable hydration mile after mile. Flexible designs reduce sloshing and movement, while wide openings make filling and cleaning quick and easy.

When to Use Each Type

  • Short runs (0–6 miles): Handheld bottles provide quick, convenient hydration without added bulk.
  • Mid-distance (6–12 miles): Soft flasks offer lightweight, packable hydration that adapts as you drink.
  • Long runs & trails (12+ miles): Hydration bladders deliver higher capacity and hands-free access when used with vests or packs.

Fit & Function — Dial It In

Choose hydration systems that match your setup and running style. Look for compatibility with your vest or belt, easy-access valves, and designs that minimize movement while maximizing efficiency.

FAQ

What is the best hydration option for running?

It depends on your setup—handheld bottles for shorter runs, soft flasks for lightweight carry, and bladders for long-distance or trail running.

Are soft flasks better than bottles?

Soft flasks are lighter and more compact, making them ideal for vests and belts, while bottles offer structure and easy handheld use.

How do hydration bladders work?

Hydration bladders fit inside packs or vests and use a hose system for hands-free drinking while running.

Complete Your Kit

Pair your hydration system with Nathan hydration vests, hydration belts, and running gear—everything you need to stay hydrated and perform at your best.