Dear friends:
 Because all shoes size is difference,When you order the shoes,you should according to Our size and internal length.
 
 According to the Insole length.(Insole length=Foot length +1cm)
 The size is Not Standard ,Just convenient for you to do order.
 The comfortable length is the foot length add about 1cm.
Please choose the right size.
 All shoes will be shipped with bubble bags,no boxes !!!
Note:This shoes control by switch, it is USB charging. The shoes charging takes 2-3 hours and will work 7-8 hours.