My group is attempting historical costumes for the first time - namely, late 18th/early 19th century Royal Navy costumes. Here's our biggest concern: my research implies that these the frocks of navy officers (example of the lieutenant's frock
) were traditionally wool. We will most likely be wearing these during California summers, so while wool might be the most accurate, we might die while wearing it.
So our question is: are there any fabrics that we could substitute in that would be lighter and/or breathe better than wool, but still retain the appearance of wool? Or are we better off being more accurate and a bit warm?