Fully lined, like men's basketball shorts... only heavier and better. Duh. These sit right below your bellybutton. They have elastic in the waistband

IF YOUR HIP MEASUREMENT (LARGEST PART OF YOUR BUTT) IS MORE THAN 10 INCHES BIGGER THAN YOUR WAIST YOU WILL NEED TO SIZE UP- SEE SIZE GUIDE FOR HELP. LIKE WE ALWAYS SAY "BUY FOR YOUR LARGEST PART AND TAILOR IN THE REST".