There has been some questions about the instep volume in the Krypton vs. the Flexon. I measured both boots and it appears the Krypton has about 10% more volume around the instep area. When I did my Thermoflex liners, I didn't notice any difference in the volume do to the Thermoflex design. So, liner to stock liner it will be greater in the Krypton than the Flexon. Those who couldn't get into a Flexon, might be able to get into the Krypton and IMO, coming from a Flexon, you are not scarificing anything.
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12/15/04 at 11:36am