Do you use or have running buds that use these. Chrissy is fanatical about drinking water. She bought a belt with 2 small water 'canteens' for $55 yesterday. I has slots for energy quickshot gels. Belt or not do you use stuff like that (Amazon had some for basically $1 each). In a marathon would you use a product like this.
She uses my headlamp about once a week...probably will not need it this summer and I probably won't either.