In my experience DHL always hit you up, I've had some things pass through Swiss Post without charge. Post normally only bill you when the charge totals over 5CHF (Goods > CHF 62)
Note you pay the VAT/MWST on the total value of the shipment which includes the customs admin fee (9.75 for DHL, CHF 13 for Swiss Post)
It is the only contry of origin where duty is due on such boots. May be the chinse produce in N.Korea and actually declare the original manufacturing contry.
(There may be other contries, but the list of contries were no duty applies is very long, and North Korea was explicitetly listed as not duty free).
Edit: Duty is also due when the boots were manufactured in: Russia, Taiwan, Monaco maybe others
I would say that DHL is not my prefered company for delivery because they do have charges on top of the standard import duty. It arrives as a separate bill to be paid.
Warning when ordering via Amazon.de: Usually amazon.de automatically substracts the german tax and adds the swiss one so it is actually cheaper. But if this is not done automatically, one is likely to pay the extra swiss import duty plus processing fees. If delivered by DHL, their own processing fees will be added to these.
p.s. Must say that I did not analyse into detail what exactly DHL charged which time as it was quite lengthy.
Well I am happy to report that the booties seem to be made in Bosnia & Herzegovina. Arrived from Verona in 4 days. The additional costs paid directly to UPS delivery man.