Duchamps Alternating stripe shirt is a good balance between a plain & a striped shirt. This pristinely cut shirt has a wide spread collar, allowing ample room for a knotted tie. As the pattern on this Duchamp shirt is subtle, you can experiment a little more with the pattern on your tie. Try a floral or geometric tie & then add a matching pochette for an individual look.. Charcoal. 15, 15.5, 16, 16.5, 17, 17.5, 18