This is my daughter's second pair and we have been very happy with the 860 series.  Apparently they have more support than even other NB styles.  My daughter is prone to twisting her ankle and her foot doctor recommended NB shoes. In the 4 months that she had her last pair (but outgrew), they have held up perfectly and since I sprayed them with waterproof spray, I haven't even had to wash them.  Very happy with our purchase of this style.  And - I got our last pair in the store and paid full price $60 plus tax.  I'm very happy to find it half price here.