It was sent by a very nice lady who makes doggie sweaters and
other crochet item and sells them on etsy.
Here is a link to her shop: Crochet Cabin
She also has Jack Russell Terriers.
Here is Annie modeling her new sweater.
It slips over the neck and has a buttoning strap that goes under the chest.
Very easy to put on and Annie seems to like it a lot.
It has an adorable hood on it too.
Annie thought she try it out for a roll in the snow.