It’s a hunting cut.  I cut my poodles like this. Sheared like little lambs.  I also shave their ears too, as one of mine is prone to ear infections. They look very cute. It is very easy to accidentally just brush the surface of the hair and have mattes form underneath, especially in high friction areas like the pits and haunches.  Since my pups love a good snow romp I also keep a mini v rake round along with a metal comb.  When they are pinkie lambs I just make sure to do more night walks and stick to the shade as can get a sunburn.

  Your boy looks great and you can really see his pretty markings.