I have purchased both and my vibram soles were so slippery that i had to purchase the star cleats for another $40 in order to wade anywhere on the Eagle or Roaring Fork in CO. Went Fishing with a guide there this last year and he noticed that i had cleats in and told me to take this out because they SCARE THE FISH. Catch rate went up double in the next hour. SOOOOOO back to my felt boots I went. Felt like i got scammed by the fly shop on these rubber soled slick as Sh$T boots. They were a 2010 Simms guide boot so everyone knows. Just Wash your Stuff.