Made of polyamide, this dog coat fastens with a grip-tape strap. Grip-tape strap 100% polyamide Dry clean Imported SIZE Extra-Small: Neck to tail, 9.75", mid-width, 9.25", tab to cheek length, 12.25", strap length 8" Small: Neck to tail, 13.75", mid-width, 11.5", tab to cheek length, 17.25", strap length 10.25" Medium: Neck to tail, 17.85", mid-width, 14.75", tab to cheek length, 22.25", strap length 13.5" Large: Neck to tail, 21.85", mid-width, 18.25", tab to cheek length, 27.5", strap length 17" Extra-Large: Neck to tail, 26", mid-width, 21.75", tab to cheek length, 32.5", strap length 20.5" Extra Extra-Large: Neck to tail, 30", mid-width, 25", tab to cheek length, 37.5", strap length 24".