You can easily attach the sensor to the strap of your heart rate monitor

Superleicht (144 g in M) und schnell trocknend

Innennaht: 10

The integrated whistle in the elastic headband allows the user to signal for attention in emergencies

It’s even more liquid than the PF 30 Gel

BIX Soft Flask 500 ml Ausrüstung You can easily attach theThe BIX 500 ml Soft Flask is a lightweight and practical bottle for long endurance sessions on trails or during longer road runs such as marathons. Weight: just 35 g Fast Flow bite valve, gentle on the teeth Shrinks whilst drinking to prevent sloshing Filling marks for easy mixing of drinks as required BPA and PVC free, does not alter the taste Can be compressed for space saving storage The BIX Flask is a standard size and therefore fits into most