Something that’s “easy as pie” is something that can be done quickly. Do not confuse this with something that’s “easy as pi,” which is, since pi has infinite decimals, something that requires all of eternity. When you cross “easy as pie” with “easy as pi,” you end up with these Easy as Pi Crew Socks. Wear them next Pi Day (3/14) or give a deliciously irrational gift to your favorite geometer.