As I continue to march through the list of essentials a stylish guy should be aware of, I've come to my next topic: nylon NATO watch straps.

NATO straps originated in the British military during war times. The acronym NATO stands for North Atlantic Treaty Organization, which is basically something they put together in 1949 with the U.S., Canada, and 26 European countries for collective security. That just simply means that if there is an attack on one of those countries then it is considered to be an attack on all of them. And all will join together in retaliation.

The straps were primarily used for diving watches because they were durable, they didn't rust, they were inexpensive, and there was no worry of a pin coming unfastened and the watch getting lost at sea. NATO straps grew wildly popular when the original 007, Sean Connery, wore one similar in the movie Goldfinger in 1964. 

Now they're offered in just about any color combination you can dream of. And you don't need a Rolex watch face. A simple Timex will do. So if you're looking for a quick, inexpensive way to put a spark into your summer wardrobe, take heed to these four steps: 

1. Buy this watch. 

2. Go to this website. 

3. Buy three or four different styles. 

4. Change them out as often as you please.

*You can swap out one strap for another in as little as 45 seconds*