So, I was looking at buying my first dress shirt.
Instead of the old-fashioned S-M-L-XL every shirt in existence has, dress shirts have two non-related numbers. They all say something like "17 35-38" or a "15 35-38."
1: What does this mean?
2: Why can we not go with old fashioned S-M-L-XL scale everyone already knows?
3: What numbers should a size-Large guy look for?