We are still on it, we should received 2 more prototype mid April, for now we try about 9 prototypes, but none of them was good always something wrong.
Too warm, not protective enough, not confort enough ... As you know i'm the first user of them so I really want a good product. So i don't think we will have a summer version for this summer but maube i'm i'm wrong and i'll be happy with one of the proto i'll receive mid april. I'll keep you in touch once i've test them