The Kolby Stretch Pull On Short is unbeatable when it comes to comfort. Kolby Keep Cool: Where fashion meets function. A collection of fabrics that use sweat wicking, sha The Kolby Stretch Pull On Short is unbeatable when it comes to comfort. Kolby Keep Cool: Where fashion meets function. A collection of fabrics that use sweat wicking, shape retaining and breathable material to help keep you cool and dry while on the move. Keep Cool tops use a special inner material which is made of ult