A company called Hugh & Crye has a button down shirt named after Conshohocken. We emailed one of the owners and found out that the two owners use to live in the area and both spent considerable time in Conshohocken and Manayunk (which also has a namesake shirt). Below is how the Conshohocken shirt is described:
Our Conshohocken shirt is among our washed button-down collection, and is cut from a black and grey check pattern, on a twill cotton fabric. The collar is the perfect height for a button-down – not too tall and floppy, and not too fashion-forward small. It’s gone through a special wash that leaves the garment feeling soft and comfortable. The cuffs are rounded and convertible, there are side gussets, and a single breast pocket.
The shirt is currently on-sale (as of 11/20/15) for $75.00 (regular price $85.00). Click here to shop.