Ogz introduced me to this line of undies/swimwear.
I checked their selection and found these three:
L to R Clockwise: Spin Hipster Fast (I like the bold label design); Graduate Flinders (I just love pink boxer briefs); and 70's FIre.
They're kinda expensive but the quality of the material is worth every penny. Shipping is free too.
Next time, I might get their Hero Hip Action ;oP