Answer: coolness

AnswerCrossword Clue
COOLNESS

Snoopy-wearing-shades trait

COOLNESS

Hipster's trait

COOLNESS

Composure.

COOLNESS
Aplomb.
COOLNESS
Self-possession
COOLNESSPOSE
COOLNESSFonz's quality
COOLNESSFonzie's trait
COOLNESSSangfroid
COOLNESSNonchalance
COOLNESSReserve
COOLNESSHipster's quality