Nerd Belts 500ml Soft Flask

Nerd Belts 550ml Soft Flask – Running & Trail Hydration Flask

The Nerd Belts 550ml Soft Flask is a lightweight hydration flask designed for runners and trail runners who need convenient access to fluids while on the move. With a 550ml capacity, it’s an ideal size for running hydration vests and longer training sessions, races, and trail adventures.

Featuring a generous 45mm wide cap opening, the flask is quick and easy to refill and provides plenty of room for adding ice cubes on warmer days. A fast-flow valve makes drinking simple while running, while the soft flask construction provides a compact and practical hydration solution.

Key Features:

• 550ml fluid capacity
• Ideal size for running and trail running vests
• Lightweight soft flask design
• 45mm wide cap opening for easy refilling
• Large opening accommodates ice cubes
• Fast-flow valve for easy drinking on the move
• Suitable for training, racing, and trail running