What is a preferred seat on KLM?

[travoflyers]

When traveling with KLM Airlines, if you select the preferred seat option, you will quickly reserve first-row seats behind the Economy Comport. Per the policy on preferred seat selection, there is no additional cost payable, as you can choose a standard seat during check-in or when purchasing a ticket. To learn the appropriate set of procedures regarding KLM seat selection, you should use the following information as you will be guided at your convenience.

Easy steps to get KLM preferred seat online:

While you are on the KLM's official website 
You select the ticket of preference after entering the ticket details.
After which, a seat map tool will be there to choose a preferred seat in the available class
Next, after completely taking assistance with seat selection
Go to the payment page if any fee is applicable.
The last tap is over the submit button, and you will receive a confirmation email directly from KLM Airlines for seat selection.