But having tried on birkenstocks you can tell the difference. Its not great but its good. asics speva insole So as a helpful hint, charge them before they go dead as youll never get them to turn back on if you dont. I wear them for hours with out a sore spot. asics speva insole It is very worth it especially for this price! asics speva insole Finally the sole is getting pretty worn so I got another pair. Neither set of instructions are helpful at all because they both fail to mention removing the plastic covering over both the dust guards and guide sticker before applying (essentially each consists of two plastic sheets stuck to each other). Bend them before wearing to give them a slight curve, and, for me, they are comfortable right out of the box - no break-in period. asics speva insole Each body pack can be set to one of 32 different frequencies (the frequency set for each body pack is separate for a total of 64 frequencies). Mute.
asics speva insole