Originally Posted by roundturns
I was looking at the overall volume of the Krypton compared to other boots in its class and it is at the higher end of the scale for a performance boot. Dalbello boots typically have been high volume boots. I'm going to guess that they purposely made the boot a little higher volume allowing more people to be able to fit into it versus the Flexon.
It's my personal quest to end the continual comments that the Krypton is a wider last than the Flexon . IT ISN'T! Please stop perpetuating this information unless you have the facts.
Here are the facts - the Krypton 26 shell is 5mm longer than the Flexon 26 shell (306mm vs. 301mm). The bootboard widths at their widest point (forefoot) are 81mm for the Krypton and 86mm for the Flexon. The shell widths measured at their widest point (on the outside) are 107mm for the Krypton and 110mm for the Flexon. All measurements were taken using metric calipers.
I have had Flexons for almost 25 years and recently purchased Kryptons in the same shell size. Using the same Thermoflex liner moved between the two shells there is no doubt that the Krypton is narrower through the forefoot. On the Krypton Dalbello did relax the instep a bit and the heel pocket was feeling wider until I ground the bootboards to lower my foot position in the shell. So I can't agree with any comments that the Krypton is a wider boot. It certainly isn't in the plug or semi-plug realm since the last is more than 100mm wide, but the Krypton does not follow the same pattern as anything else in Dalbello's line and should not be characterized as a higher volume boot.