Assertion: speed skate's boot | /r/MadeOf | plastic
Facets:
Source sentences:
text: In order to get into more details, the materials they are made of should also be compared: a fitness skate has a rather flexible and tolerant boot made of plastic, completed with a leg made of mesh, which is a breathable fabric, or of synthetic leather.
text: The boots of hockey skates made with reinforced leather and stitching and plastic or carbon fiber are used to enhance the boot.