Fitclips in Blue. Koss" female designers teamed up with Dara Torres to design the first headphone series for women by women. Koss Fitclips utilize an original and unique design that ensures a perfect fit. Using a new in-ear ported design, the elements rest comfortably in the ear to create the ideal seal for the ultimate listening experience. Listeners have their choice of three sizes of ear cushions designed to fit perfectly in any women"s ear. Soft flexible clips rest comfortably around the ear. Fitclips, available in five vibrant colors also feature a sweat resistant coating for active use and unmatched durability. Covered by a Limited Lifetime Warranty.