Where can i find these shorts?

Just wondering: is there a certain name for these kind of shorts, the kind you go to the beach with? if you know you can tell me... but do you know where i can find a cute, cheap pear of these? please try to keep it under $15, because i want to find a top also, and i cant spend over $30 :) please and thank you a href="http://www.surf-life.co.uk/productImages/roxy-women-s-swimwear-boardshorts-xawbs116-block-party-board-short-black_xawbs116blockpartyboardshortblack.jpg" rel="nofollow"http://www.surf-life.co.uk/productImages…/a