Oops, it doesn't look like 'jogger pants day' is a national day..

Other days

reading

Reading Day
ask out your crush

Ask Out Your Crush Day
prosecco

Prosecco Day
cat girl

Cat Girl Day
blanket fort

Blanket Fort Day
pampering

Pampering Day
bow tie

Bow Tie Day
one

One Day
slime

Slime Day
boba

Boba Day