175's wil be about as tall as he is, 170 will be around his forehead and eyes. if he is new to skiing in general I might go with some 169 fujitives since they are softer and just a tad shorter. however if he is still growing go with the 175's
And that is all that I think I know.
-a smart man should be able to spell a word at least two ways -Thomas Jefferson
I have a dream that one day all skis will have at least a 90mm wast.