well-fitted

Well-fitted describes something that conforms properly to whatever it's meant to fit—typically clothing or equipment that matches a body's contours, or components that join together precisely.

A well-fitted suit flatters the wearer's frame without bunching or gaping; a well-fitted lid seals securely.

The term can extend to abstract contexts where something suits its purpose exactly: a well-fitted solution to the problem.

The hyphen is standard when the phrase precedes a noun.