The Spier & MacKay Medium Blue Fine Twill Dress Shirt in size 16.5 features a collared neckline, button closure, and a slimming fit. Made from 100% cotton twill, this extra-slim dress shirt is ideal for business occasions with its classic style and blue solid pattern. With a chest size of 22 inches and a neck size of 16.5 inches, this shirt offers a stylish and tailored look for men looking to make a statement in their formal attire.