Amazon Inspire Digital Educational Resources.
I wear the other models for daily use, and the Kinetic line for workouts.
Seriously, if you are annoyed by the Calvin Klein trunks that get loose on the legs, and morph into atk hairy cherry skirt under your jeans by the end of the day, you will love the way these hold everything in place.
Comfortable and fun to wear.
Changed my life.
Throw away your itchy, crappy, falsely warm, cheap thermal-type underwear and invest in these.
Redefine your style statement for each day and stand out with your looks.