Made of durable polyester fabric. Suitable for all seasons easy to clean. Washable and reusable perfectly for matching with hiking and walking shoes. The essential item for hiking or climbing which change your ordinary sneakers into a special style with this durable shoelaces. Actual fabric colors may be slightly different from online colors due to different display and light brightness. Please allow 1-2cm slightly manual measurement deviation for the data. How to choose size: >For the most accurate shoe fit consider measuring your original shoelaces from tip to tip would be the best method. If you don t find the matching size in the selection just select the nearest size due the length deviation within 2 inches won t have any influence on using. >If there is no refferance the best method to Find The Length of Shoelaces You Need is to Determine How Many Pair of Eyelets The Shoe Have: 4 Holes(2 pair holes) --> 24 in (60 cm) 6 Holes(3 pair holes) --> 27 in (70 cm) 8 Holes(4 pair holes) --> 31-35 in (80-90 cm) 10 Holes(5 pair holes) --> 39-43 in (100-110 cm) 12 Holes(6 pair holes) --> 47-51 in (120-130 cm) 14 Holes(7 pair holes) --> 55 in (140 cm) 16 Holes(8 pair holes) --> 59-63 in (150-160 cm) 18 Holes(>=9 pair holes) --> 67-71 in (170-180 cm)