If you have never used these before - try them,
Verified Purchase(What is this?)
This review is from: High 5 Sports Nutrition Marathon Race Pack Mix (Personal Care)
Everything in a box to prepare, train and take part in a race. Very handy hints on using the gels and tablets on the underside of the box. If you want more stamina in your races, use these. I used them for the first time when running a hilly 10 km and took a gel before the race start, at the 5km point and at the 9km point. I found that i had much more energy and stamina for my last km and strted overtaking people in that stage, I have never had the "legs" to do that before.