Contour AthleticsContour Men’s Sweatpants with Pockets Zipper, Cruise Sweatpants for Men, Joggers for Men Slim Fit, Mens Joggers for Workout

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?