Are either pieces sized for carry on?
Carry on dimensions vary by airline. You should compare the dimensions in the specs to the airline you use regularly.
Come on guys and gals, really?
The blue version is $101.73 at the mother ship.
https://www.amazon.com/gp/aw/d/B01ATAKZ6O?ref=olp_product_details
Yep, but the grey set that is for sale here is $200 on The Mothership.