Oops, it doesn't look like 'hoody and cap day' is a national day..

Other days

boyfriend

Boyfriend Day
gum

Gum Day
one

One Day
youth

Youth Day
ask out your crush

Ask Out Your Crush Day
martini

Martini Day
aloxolt

Aloxolt Day
kale

Kale Day
latina equal pay

Latina Equal Pay Day
tulip

Tulip Day