I got this as a gift (my Petzl myo-belt broke) and I will say that it does provide more light that the petzl did. I use it for trail running mostly on a hilly fire road that is in rather poor shape, so I worry about a ankle roll. I have had no problem with seeing the trail, no rolled ankles. It does lose intensity pretty fast so I am glad I have the rechargable battery pack, I recharge after every other run. The "half click" to adjust the light is somewhat tricky, but I always leave it on full so not a problem for me. I only wish that it had the option of being able to keep the battery pack in your jacket to help keep it warm (a big plus of the petzl myo-belt). All in all, even though the power fades somewhat fast it is a solid unit.

The Ultra 103 are not nearly as good as the Ultra 102 were. First, they should bring back the two-tiered lacing system, as it was very helpful for people like me that wear custom orthotics and need to "tweak" the fit. With the new "traditional" style lacing you just can not modify the fit as was possible with the 102. Also, the 103 do not have as much cushion as the 102 did, and for people like me with orthotics that is a major negative. Having less cushion is also quite noticeable after a longer run, or on rocky terrain. Lastly, the last is slightly more curved than the 102 were, and allbeit slight, it is noticeable for severe over-pronators like myself. Bottom line, good, stable shoes if you are a neutral runner that does not need much (if any) cushion. But be forewarned, they are not up to the same standard as the Ultra 102 were.

After hemming and hawing for quite a while I broke down and finally bought a pair of these shorts. They do just as they say, the support can be felt the first minute you put them on, and is even more noticeable once you have gone a few miles. My legs felt quite a bit stronger than normal after a few miles of trail running and I did not have nearly as much soreness later on or during the next day. I will be taking them with me on a upcoming backpacking trip and can not wait. Bottom line, worth every penny.

I purchased the Myobelt XP to use during night trail running on very rocky and rugged trails that have tons of ups and downs. The lamp has served me well, as it provides enough light for me to move at about 90% of my daytime speed. If you will be using on trails with consistent footing, you should be able to keep up your normal pace. I agree with other reviewers that you can forget about changing the brightness with gloves on, however, while I am using it I adjust the angle and set the brightness as I begin, so it is not a big issue. If you plan to need to adjust it frequently with gloves on, it may not be the best choice. The long life that batteries have with this lamp is a huge plus for me since I use it for 6 or more hours each week. Bottom line, if used for running, I highly recommend it.