with a nylon retainer to make them light and quiet

and they don't break in two like a 7-ply

When installing on the UFS CJ or SX boots

FR - UFS FREERIDE frames 3/110mmHowever may need an adaptor to be properly mounted on some boots/soul plates :

Height: STD: 23

Roces Nils Jansons - Storm M12 Skates - Boot Only - Sale Size:6 with a nylon retainer toTECHNICAL DATA: Shell: High Grade Polyurethane, Low cuff Closure: Aluminium Memory buckle, Laces Boot: Anatomical padding, Slo Memory foam, Anatomical MADE IN ITALY Boot is 47% cornstarch based PU Recyclable packaging and 99% plastic free Made with the environment in mind, the skate shells are made from 47% corn starch, all black plastic parts are made from 97% recycled plastic and the liner padding is made from 100% recycled materials.