From the post: 10 Types of Odd Friendships You're Probably Part Of
This original Wait But Why poster is printed on acid-, lignin-, and chlorine-free paper that is also pH buffered with calcium carbonate for a true archival sheet.
Measurements are taken of the front of the shirt. For example, a Men's Small says Chest = 18", which means it measures 18" from left to right of the front of the shirt. The full shirt circumference = 36" (front and back combined).