The sole is a foam like cushion. The texture is soft and comfortable. I’ve had the same problem with other brands like Nike so maybe there’s no avoiding it Why, you may ask? Samsung chose to use a single lens auto focus, instead of a dual lens focus found in every other modern smart phone. El producto es hermoso pero después de casi un mes de uso los les que tienen ya no prenden yo los compré sin importar eso de las luces fue por el diseño y el precio pero si buscas que las luces duren mucho tiempo creo que no estarás satisfecho. I purchased this for use with my electric road bike, which had no rack but had mount points for a rack. I ordered these to have a backup for traveling. I will never pay well over twice the price for the Apple case after purchasing this one. Im hoping they last more than one season. Note that my bike does have a quick release axle; if yours does not, your assembly experience may vary.