New  NIKE board shorts swim trunks JACKKNIFE black gray stripe 30   x 11 MSRP was $62.00    

  

 Flat  waist.   No mesh brief inside. Zipper pocket at right thigh

90% polyester 10% elastane.  

  

These board shorts are worn below the waist, on the hips so they measure larger than their stated size because you don't wear them at your waist. 

Size 30  Waist measures 31"     Inseams measure 11"  Full length measures about 21"