Specification:Material: NeopreneColor: GraySize: S、M、L (Elastic)Thickness: 2.5mm(1mm=0.039Inches)Size Details:          Size       S       M       L           Shoe Size       36-38       39-41       42-45           Length       19.8cm       20.2cm       21.7cm           Width       11cm       11.3cm       11.8cm           Height       18cm       18.3cm       19cm           Conversion: 1cm=0.39Inches   Features:Highly elastic material、 soft wearing and anti-skid.Perfect water sport accessory for protecting your feet from scratch and prick.Thick and warm、 elastic and comfortable to wear.Note:Please allow 1-3cm error due to manual measurement. Please make sure you do not mind before you bid.Package Included:1 pair of diving socks