Have a pair with the Boa Lace and love them. Heard some had problem with the Boa system bu tI have used them rather hard for going on three years now and no problem. Both fishing and duck hunting so they got a decent work out and performed well. I like them so much I bought another similiar pair of boots to store so when mine do bite the dust I will have them for replacement in case similiar is no longer made. Tried to do same with pair of Rocky hunting boots but they stopped making the model I wanted before I acted. Like someone said. If you find something you really like get a lifetime supply before they either improve or discontinue it.