The Fashion Shoelaces series are made exclusively for ShoeLacesExpress. We did this to produce a better quality shoelace with more sizes and colors. These Fashion Round Casual / Athletic Shoelaces are made of high strength polyester with a cotton core for strength and flexibility. Our manufacturer increased the "PIC" count to be higher than standard shoelaces in the manufacturing process of these Fashion Round Casual / Athletic shoelaces which adds to the strength and flexibility. This increased "PIC" count also helps the Fashion Round Casual / Athletic Shoelaces stay tied better than standard shoelaces. Fashion Casual / Athletic Round shoelaces are top quality shoelaces. These shoelaces come in a variety of colors and lengths. Fashion Casual / Athletic Round shoelaces are sold in a 2 pair pack for a total of 4 shoelaces. Please note that these Fashion Casual / Athletic Round shoelaces are designed for casual and athletic shoes. These shoelaces are too thick for dress shoes.