This is a typical picture of the gear we use during an outdoor run. As you can see, there are two flasks for both me and Karel, with our respective hydration belts. Let it be known that Karel and I run with our hydration belts for every single outdoor run. It doesn't matter how short or long, a hydration belt is part of our running gear. It surprises me how many athletes undervalue the many benefits of a hydration belt/pack. We have been long-time supporters of hydration belts and packs because we feel they bring so many great benefits to athletes when running outside. Interestingly, hydration belt/pack acceptance is sport dependent. For example, hydration belts are not very popular among stand-along-runners and many refuse to wear them in training and racing. Furthermore, some races prohibit the use of bringing nutrition (belt/pack) with you on race day for safety reasons. In the ultra-running community, hydration packs are popular and widely accepted and encouraged. Ironical...
3x Author, Board Certified Sports Dietitian, Master of Science in Exercise Physiology, 2017 IM CHOO Amateur Female Champion, 19xIronman finisher including 6xIM World Championship finisher, Triathlon Coach, 30-year Vegetarian.Trimarnicoach.com