Assertion: cleat's surface | /r/CapableOf | increase the friction
Facets:
value: between it
type: TRANSITIVE-OBJECT
Source sentences:
text: Optionally, the concave upper surface of flange 12 may be roughened, dimpled or furrowed to increase the friction between it and sole 2 when the cleat body 11 is tightened in position against the sole.