As promised, a photo with my 500-mile Go the Distance cap for 2015, now that it has finally come. If you swim 500 miles in a calendar year (and log it with US Masters Swimming), you can buy this nifty cap.
It fits well for a silicone cap. They are usually too big for me.
In other Go the Distance news, as of March 10, I have swum 104.55 miles in 2016:
10 mile swim 
Cool cap! That is my goal, when open water kicks in this spring summer i hope to be ahead of schedule. Appreciate your swim posts!