Protection against the cold of winter
As a protection against the cold of midwinter it is tough because there is no wind function, but I think good enough if it about 10 degrees. Size I think the smaller one size than age is Taitofito.
Japan customer (2017-04-05)
Jersey for children
Elementary school third grade average height, but I purchased for weight 9-10-year-old, it seems to be a little larger. If the size of the perfect want is you think is good for 7-8 years old. Making, we have the same firm for adults. Temperature is be better to firmly wearing inner that it more than 8 degrees. Spring, this in enough if autumn