Assertion: crampon's crampon | /r/Desires | a heel welt
Facets:
value: to ensure proper fitting
type: PURPOSE
Source sentences:
text: :oP Newmatic is the Grivel name for hybrid crampons (which requires a heel welt).
text: Most crampons require welted boots to ensure proper fitting.
text: Newmatic is the Grivel name for hybrid crampons (which requires a heel welt).