The Grantchester is essentially an overgrown variation on the four-in-hand knot. It rivals the full Windsor for thickness, but has the asymmetrical shape of the four-in-hand.The history of the name is unclear. Thomas Fink and Yong Mao use it in their mathematical work on neckties, The 85 Ways to Tie a Tie. Like a number of necktie knots, the name comes from a town in England near Cambridge, where Fink and Mao studied.It is one of a family of “inside-out” knots tied with the seam facing outward beneath the collar, rather than inward. The final stage hides the seams of the ends by facing them toward each other, while the rest of the tie is hidden beneath the collar. The Grantchester is a hefty knot, similar to the Windsor in bulk, though a bit shorter in height. Use a relatively thin necktie to keep it from becoming too bulky.