Unisex Shoes Invisible Height Increasing Insole

Product information:
Color: light gray flat bottom, light gray height increase insole 6CM, light gray height increase insole 8CM, light gray height increase insole 10CM, dark gray flat bottom, dark gray height increase insole 6CM, dark gray height increase insole 8CM, dark gray height increasing insole 10CM, standard sneaker size
Heel height: flat heel
Size: 36, 37, 38, 39, 40, 41, 42, 43, 44
Sole material: rubber
Toe holder shape: round head
Shoe Upper material: two-layer cowhide
Wearing method: front lace-up
Function: breathable