DANISH ENDURANCE Cotton Boxers for Men with Optional Fly, Stretchy & Breathable Men's Underwear Trunks, 3 Pack

I’m a bit confused with sizes is it per amazon size chart or the sizing within the add on the picture. Thank you in advance.

How much does the xl actually measure around the waist. is the waist measure just above belly button or on the natural waist? thanks.

There socks seem to be of very poor quality. Are these trunks any better?

I am looking for a 34"waist what size will I choose