Like a pair of thick socks is a example of what?

Answer 1

That's a simile, where you compare two things.

"The fog in London was like a pair of thick socks."

"She snuggled up in bed, warm like a pair of thick socks."

There's a poem by Jimmy Santiago Baca that starts:

"I am offering this poem to you,

since I have nothing else to give.

Keep it like a warm coat,

when winter comes to cover you,

or like a pair of thick socks

the cold cannot bite through,

I love you."

Answer 2

Keep it like a warm coat