Mentioned on Master Horologer

http://www.masterhorologer.com/2016/03/vario-nato-straps-colourful-and-vibrant.html

"In place of traditional leather straps and bracelets, lots of watch lovers chose NATO straps thanks to its flexibility and reliability. However presently there are fewer options if you wish you desire a vibrant and colourful NATO straps to suit any occasion." -Master Horologer