for adventure racers and ultra-runners.It's weatherproof because… a Gore-Tex XCR stretch "bootie" provides a snug, waterproof fit – even heavy rain and reasonably deep puddles can't penetrate. If you run through a deep stream, though, you'll have to take

's also an unlimited stopwatch memory, and everything can be downloaded onto your PC.Best for If you're planning to do a serious adventure race, then it's well worth considering this fantastic piece of kit. But most runners will never need most of the X6's

adventure racer’s tool measures HR, temperature, air pressure and altitude, and can be used as a compass.Despite looking complicated, is actually easy-to-use and scroll-through functions.Can record your HR every two seconds.All the information recorded can

likely to need on a sports watch, unless you’re a serious adventurer. If you are it’s a great tool with an altimeter, compass and barometer, as well as a stopwatch. The stopwatch will record 30 laps, and the Advizor also keeps a note of the how fast