Contour AthleticsMen's Joggers (Cruise) Sweatpants Men's Active Sports Running Workout Pant with Zipper Pockets

where is this product made?

Want to buy for my son - tall and very skinny - 6' 2" and about 148 lbs. What size is suggested? If a medium, will it be far too short in length?

Would these be good for travel? Trying to find breathable travel pants for 10 hour flight.

I'm 5'9 160lbs?