for the runner – they take the trial and error out of mixing up energy drinks. Marked on the side of the opaque bottles are calibrations that allow you to mix up the SIS product of your choice to exactly the right concentration or consistency. This means that

to at least 10mph (even if you’re not a fast runner, you’ll need this for sprint intervals), and a decent warranty length.Home models have certainly come on since the last time RW looked at them, two years ago. For a reasonable outlay of £1,000- £2

Highly Commended BUPA Great North RunUK Small Event (under 5,000 runners)Winner Bushy Park 5K Time TrialHighly Commended Abingdon Marathon