Leather choices

Hello all,
Soon I will be ordering another pair of 8” Perry’s.
But I wanted to get peoples opinions on the Perry Select. This pair will be my backup pair, as I am a carpenter by trade, and need a pair for when I have to have mine resoled. I wear my boots 90% of the time, and will be wearing these outside of work primarily. But what are the benefits of the “double shot” leather. Thanks everyone.