Differences between bands bundled with Fenix 5 Plus and Fenix 5 (original)

I'm in the market for a Garmin black silicone band and was curious if anyone could tell me if there's any significant difference between the new, smooth bands bundled with the Plus watches and the bands from last year. I have the new solar flare orange and think it's pretty comfortable, but the others don't appear to be in stock anywhere.

Are there just cosmetic differences between the two styles, or are there any changes to the comfort and fit?