On Running Soft Flask 500ml Creatine Monohydrate A flexible Speedboard gives stability

A flexible Speedboard gives stability and guidance for energy return

Ultralight resilient EVA foam offers the perfect blend of soft and bouncy

The dual-cushioning midsole consists of nitrogen-infused Energy NXT  foam on top and EVA-based Enerzy NXT on bottom

Two side pockets

Wide 42mm cap with twist-locking system makes refilling easier and eliminates spillages

On Running Soft Flask 500ml Creatine Monohydrate A flexible Speedboard gives stabilityReady to hit the trail? The On Running 500ml Soft Flask is the perfect sidekick to keep you going. It fits like a glove in the Ultra Vest or is easy to carry by itself. On designed it to be super practical. The lid won't leak, so you can run, jump, and climb without worrying about sticky spills in your gear. And when its time for a refill, the wide top makes it a breeze to fill from any tap or stream. Cleaning is just as easy. Less fuss, more