This marana kids was developed to be the most durable cupsole in skateboarding and its lightweight super comfortable sti evolution foam midsole enhances cushioning and won39t pack out it has a pro 1 polyurethane footbed and full length flex grooves in the 400 nbs rubber outsole for flexibility the marana kids39 fused on injected rubber toe cap makes it super hard to wear through in fact ryan sheckler said they are the longest lasting shoe i39ve ever skatedprogression and durabi