1,Cross Country Ski Sleeve 2,Size:57*135mm(2.244"*5.315"), 3,Certificate:SGS 4,EVA ... +Nylon velcro 5,Black.white etc Cross Country Ski Sleeve ... Item57*135mm(2.244"*5.315"), Item No.HZ-7010CertificationAll ... Color FastnessAbove 5 degreesSizeThe popular sizes are 50*450mm(2"*17.72"),40*450mm(1.575"*17.72") ...