BABY's Fleece JSK was released in 2005. In the ad it's featured in it's written as フィリーシュ which doesn't mean Fleece but doesn't seem to mean anything, so maybe this dress isn't even called Fleece?
This style of JSK with a sort of attached apron is very uncommon, and BABY did put out another dress with this sort of style, but it did not seem to be so popular. It is quite strange for sure! Unlike in the ad where the skirt has a lovely shape, in reality the dress does not hold an a-line very well.
There are a lot of cute details in this dress and a ton of lace. It uses daisy lace and buttons which I love.