It is a mock neck short-sleeved jumper with a swede pattern.It has a front zipper, so there is no neck tie when wearing it, and it's practical to store with the side zipper. I did more. The semi-up design allows you to coordinate bottom items.There's an E-string and stopper on the neck of the mock neck. It's easy to adjust. It is possible, so it can be used simultaneously with wind blocking, performance, and casual.