Just out and perfect for the water months is the Art Gallery Clothing spring summer 2016 shirt range.
All are short sleeves for the time of year and each has all the 1960s detailing you would expect. Back pleats and darts, plus a chest pocket and button-down collar for example.
See the images to see check out the different cloths that are available for each one and if you like what you see, prices are between £40 and £45.
Note that Art Gallery also has a clearance store on eBay. You can find that here.