Original Dunks vs. SB DunksOriginal DunksDesign: Basketballs, classic, versatileFit: Runs true; standard padding.Intended Use: Casual, light sportsSB DunkDesign: Designed for skateboarding by adding extra padding and durability to the materials.Fit: Looser, extra padding in the shoe often times requires sizing downIntended Use: Skateboarding-use. It better supports and comforts during such activities.