I have a standard size of 38, and on the advice I have a number ordered my pants larger, unfortunately, I was then still too large. Since I am master tailor, I absolutely have the pants and wanted no more in 38 there was I kept it and it made me close. Now the pants fit great and the thermal insulation is estimated by Killtec on Level 10 (which is really super hot), and by the softshell fabric makes you move. Conclusion: these pants you can just recommend.